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Main unit: 190 mm x 20 mmHandle probe: 150 mm longProbe (only): 48 mm longCable (only): 300 mm longPower: 1 aa alkaline battery (1.5v)Weight: 160g b (without battery)include:1 pH and Cl2 probe tester1 manual1 sandpaperStandard factory packagingPackaging InformationUnit type: weight per piece: 0.221 kg (0.49 lbs) Packing: 19 cm x 12 cm x 5 cm (7.48 in x 4.72 in x 1.97 in)

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1. Series: portable PH test pen2. Working temperature: 0-60 degree C3. Measurement range: 0.00-14.00PH4. Resolution / accuracy: 0.01PH5. Battery: 2x1.5V (LR44) button batteries6. Calibration method: (4.01 / 6.86 / 9.18) three-point calibration7. Scope of application: domestic water, food PH, aquarium water quality, aquaculture and other fields8.Features: highly sensitive measuring probe, automatic temperature compensation function, three-point calibration function, automatic calibration function, easy to use, large screen display9. Product accessories:- 1xPH test pen- 1xPH 4.01 25 degree C PH Buffer Powder- 1xPH 6.86 25 degree C PH Buffer Powder- 1x user manual- 1x packaging box10. Product size / weight: 15.5x3.1x1.7cm / 49g11. Note: Some customers report that the product has data jumps, which is normal. (When using this product: After being placed in water, the data will always change slowly from the last decimal point, this is because the PH meter needs to adapt to the test environment. The data will be stable for about 1 minute when it is still, and this the final test data. In addition, if the water surface shakes, the data will also jump, so the test must ensure that the water surface is still.)

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1. Module parameters:- Power supply voltage: DC4.5-6V (micro USB interface)- Working current: no more than 70mA- Discharge voltage: 1.00V-15.00V Resolution 0.01V- End voltage range: 0.5-11.0V- Support through current: no more than 3.000A resolution 0.001A- Voltage measurement error: less than 1% + 0.02V- Current measurement error: less than 1.2% +-0.002A- Battery capacity range: 9999Ah (1Ah = 1000mAh) 2.2. When the value is large, it is switched by decimal point shift. When it is less than 10Ah, it will be displayed as X.XXX, when it reaches more than 10Ah, it will be displayed as XX.XX, and so on.3. Circuit board size: 50mmX37mm4. Finished product size: 50mmX37mmX17mm (Length X Width X Height, including copper foot height)5. Weight of board and accessories: single board 28g (including copper pillar), two 5W ceramic resistors 9g, 50W resistor about 27g (including wire)6. Note: In order to improve the voltage measurement accuracy, this circuit is specially designed with DC bias. When the terminal is connected nothing, a small voltage will be displayed, which does not affect the actual measurement. 0V) will display 0. If you want to understand the principle, you can check the superposition theorem in electrical engineering.7. How to use:- The battery under test should be fully charged first.- Connect the positive pole of the battery under test to the input positive pole, and the negative pole to the negative pole of the input. Connect the load to the output positive pole and the output negative pole, and connect the tester micro USB with working power (not available for desktop or notebook USB power supply). The battery voltage is displayed at this time.- To start the test directly, just press the “OK” button, the tester can automatically formulate a suitable termination voltage according to the full charge voltage of the battery, and will flash the display 3 times to start the test. Need to manually set the termination voltage, just press the "+" or "-" button to modify in the battery voltage display state, the termination voltage is displayed at the beginning of P, the back represents the voltage value, the resolution is 0.1V, after setting, press "OK" "start testing.- After the test starts, the tester will turn on the electronic switch that controls the load. The test process data display will be displayed between the discharge capacity (Ah), the current discharge current (A) and the battery voltage (V). When the battery voltage reaches the set termination voltage, the tester cuts off the load control switch, the display data stays above the capacity (Ah) and flashes quickly with the corresponding indicator light, the displayed capacity is the actual discharge capacity of the battery, press it "OK" can stop the flashing and let the data display stably. Press the "OK" button again to restore to the state of just powering up and replace the battery to test the next section ...8. Error code and meaning:- Err1: The battery voltage is higher than 15V- Err2: The battery voltage is lower than the set termination voltage- Err3: The battery cannot bear the load discharge current or the line internal resistance is too large- Err4: Current is too large (current exceeds 3.1A)- Err5: Improper use or wiring error has caused the device to burn down and cannot be used (current sampling or control switch MOS burned)9. Note: If the battery is reversed, when the load is turned on and the load current is large (about> 0.8A), the circuit switch tube may be damaged!10. Secondary calibration operation: Press and hold three buttons to power on the tester at the same time, enter the calibration mode, first display the number of calibration records, then enter the formal calibration sampling program to display 0u0A, then short-circuit the input positive and negative poles and press "OK "Button to complete displaying J10u, apply a standard DC voltage of 10.00V between the input positive and negative electrodes, press the" OK "button, and then display J2.0A, apply to the output negative electrode (inflow direction) and input negative electrode (outflow direction) After a constant DC current of 2.0A, press the "OK" button once to complete the calibration. The tester will pre-check the calibration data. If the calibration data is reliable, it will display 4 calibration numbers in turn and then exit. If the pre-audit believes that the data is not reliable, discard the data and exit.

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Features1. The product has reverse connection protection, it will not burn out if it is reversed 2. Lead-acid battery Lithium battery is universal and can be adjusted through the buttons on the back 3. It can display battery symbol + percentage or battery symbol + voltmeter, the two display modes can be switched at will 4. The product has only two wires, simple wiring, equipped with a wiring socket, and the wire length is 300mm 5. All battery specifications and function selections are set through the buttons on the back, no electric soldering iron is requiredSpecification1. Work voltage: 10-100V 2. Work current: Less than 5mA 3. Sleep current: 12uA (12V test) 4. Display: LCD with backlit 5. Suitable for: 3-27 x 3.7V Lithium Batteries; Lead Acid Batteries 12V, 24V, 36V, 48V, 60V, 72V, 84V 6. Dimensions: 61.3 x 33.3 x 13.5mm 7. Mounting hole Size: 58.5 x 28.5mm 8. Wire Length: 30cm

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Features1. The product has reverse connection protection, it will not burn out if it is reversed 2. Lead-acid battery Lithium battery is universal and can be adjusted through the buttons on the back 3. It can display battery symbol + percentage or battery symbol + voltmeter, the two display modes can be switched at will 4. The product has only two wires, simple wiring, equipped with a wiring socket, and the wire length is 300mm 5. All battery specifications and function selections are set through the buttons on the back, no electric soldering iron is requiredSpecification1. Work voltage: 10-100V 2. Work current: Less than 5mA 3. Sleep current: 12uA (12V test) 4. Display: LCD with backlit 5. Suitable for: 3-27 x 3.7V Lithium Batteries; Lead Acid Batteries 12V, 24V, 36V, 48V, 60V, 72V, 84V 6. Dimensions: 61.3 x 33.3 x 13.5mm 7. Mounting hole Size: 58.5 x 28.5mm 8. Wire Length: 30cm

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Product specifications1. Temperature:Temperature measurement range: -30 ° C ~ 250 ° C2. Resolution: 0.1 ° C / 0.1 ° F3. Accuracy level: ± 2 ° C4. Response time response time <1 second5. Distance ratio: (D: S) 1:16. Emissivity: 0.95NCV:1. Measurement range: 12~1000VAC2. Measurement frequency: 50Hz / 60Hz3. Safety standards: CA.III 1000V / CAI.IV 600V, CE4. Product size; 152x25x28mm5. Battery: 2xAAA 1.45V (without battery) Package Included1 non-contact AC voltage detector (without battery)1 x English manual

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Description:1. Type: digital voltage measuring instrument2. Voltage: 4-30V3. Current: 0-5.1A4. Power: 0-155W5. Internal temperature: 0-80 degrees6. Timing: 0-99 hours7. Grouping: Groups 0-98. Ambient temperature: 50 (degree C)9. Size: 5.3x2.6 cmFeatures:1. Real-time monitoring, safe and reliable, timekeeping, sleeping at night is no longer overheated, voltage monitoring does not damage the battery, both front and back can be inserted2. Quickly double-click the button to rotate the display for easy viewing.3. Safety plugs can be used as long as they are USB-C/Type-C interfaces, such as notebooks, various mobile phone charging plugs, desktop computers, etc.4. Rejects oxidation and rust, suitable for a variety of environments, aluminum alloy joints, precision built. Effectively avoid oxidation and rust5. Strong interface, sensitive contact, aluminum alloy material, built-in aluminum alloy plate, anti-friction and anti-rust for many times6. Clear screen. The charging speed is clear at a glance. With the USB monitor, the status when charging is clear and the numbers are clearly visible.

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1. Model: A830L 2. Type: Digital Multimeter 3. Measurement function: DC current, DC voltage, resistance, AC voltage, on-off, triode, diode, 1.5v battery 4. DC voltage range: 600V 5. AC voltage range: 600V 6. DC current range: 10A 7. AC current range: 10A 8. Standard accessories: test leads, instructions 9. Dimensions: 135 x 67 x 33mm 10. Battery type: 6F22 type 9V battery 11. Net weight: 0.15Kg

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1. Material: ABS/PC flame retardant material, copper nickel plated2. Weight: About 35 grams3. Size: About 3.7x2.6x8 cm4. Measuring range: 110-125V5. Purpose: Safety detection of power leakage socket6. Features: Flame retardant material, safety protection, six loop detection, 3 neon light prompts, plug and play, convenient testing

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1. Input voltage: DC 6-36V2. Output voltage: DC 0.6-36V3. Output current: 0-5A4. Output power: 80W5. Voltage resolution: 0.01V6. Current resolution: 0.001A7. Hardware protection: Output short circuit protection8. Software protection: OVP/OCP/OPP/OTP/LVP/OEP9. Application: Used as an ordinary buck-boost power supply with overvoltage/overcurrent/overpower/overtemperature/undervoltage protection, with constant current function, can charge rechargeable batteries within 0.6-36V, and can directly drive 0.6 -36V LED light10. Size: About 7.9x4.2x4.2 cm11. Weight: About 104 gramsFeatures:1. Using 1.44 inch LCD high-definition liquid crystal display, one screen displays voltage/current/power and other data2. 160 degree wide viewing angle, high brightness, durable. Rotary coding potentiometer button (aluminum knob cap, good operation feel)3. The screen supports four-way rotation to meet slotting installation in different orientations. Long press the ON/OFF button for 2 seconds to realize the four-way rotation of the screen4. The foreground and background colors can be switched at will, 64 colors can be selected, freely collocation5. With night screen mode, you can set the screen after 1-10 minutes, and wake up by any key6. One-piece frosted panel, aluminum alloy knob cap, good operation feel7. Intelligent temperature control fan, thick heat sink, two-way ventilation, good heat dissipation effect8. Dual inductance design, high-power and high-temperature resistant, dual-wire parallel-winding sendust magnetic toroid inductance

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Features1. Made of high quality material, solid, durable and strong conductivity. 2. Large LCD can display input/output voltage, output current/output power/output capacity/output time, easy to read. 3. CNC adjustment is very accurate and fast, and it also can boost and step down voltage. Output voltage can be adjusted from 0.5-30v, while the current can be adjusted 0-4A as you desired. 4. It features anti-reverse connection protection of input end, which will not burn out, safe to use. 5. Anti-reverse irrigation at the output end, no additional anti-reverse irrigation diode is needed to charge the battery; 6. The module can be set to open/close by default, easy to use. 7. It has multiple software protection mechanisms are available, and the protection threshold is adjustable.When the working parameters of the module exceed the protection threshold, the output will be automatically closed. 8. Output ripple is small and PI filter is available. 9. Thicken radiator fins helps the module to dissipate heat quickly, long service life.Specification1. Input Voltage: 5.0-30v 2. Output Voltage: 0.5-30v 3. Output Current: It can work stably at 3A for a long time, and can reach 4A under enhanced heat dissipation. 4. Output Power: Natural heat dissipation 35W; Strengthen heat dissipation 50W 5. Voltage Display resolution: 0.01V 6. Current Display resolution: 0.001A 7. Conversion Efficiency: About 88% 8. Soft Start: Yes (The soft start may fail when it starts with high power and load module.) 9. Material: Fiber glass board, Electronic component 10. Size: 7.9 x 4.3 x 2.6cmProtection Mechanism1. Input Anti-reverse Connection; 2. Output Anti-reverse Irrigation; 3. Input Under voltage Protection (4.8-30V adjustable, default 4.8V) 4. Output Over voltage Protection (0.5-31V adjustable, default 31V) 5. Output Over current Protection 0-4.1A (adjustable, default 4.1A) 6. Overpower Protection (0-50W adjustable, default 50W) 7. Over temperature Protection (80-110 degree C adjustable, default 110 degree C) 8. Timeout Protection (0-100h adjustable, OFF by default) 9. Super Capacity Protection (0-60AH adjustable, OFF by default) 10. Operating Frequency: 180KHz

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1.It adopts 0.96 inch IPS high definition colorful LCD screen, high brightness, wide angle, and has a long service life.2.Real-time detection of the charging status of the charger, clearly shows the voltage / current / power and other indicators.3.High precision and stability, small errors. It is the choice for electronics enthusiasts.4.Power failure storage function, can keep the data in time for further observation.5.Support the identification of QC2.0, QC3.0, PD, fast charging protocol.6.Designed with Type-C interface, it has a wide application, suitable for mobile phones, laptops, chargers, car chargers, etc.

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1. Voltage: DC 4V-30V (overvoltage protection can be set).2. Current: 0-5.5A (overcurrent protection can be set).3. Power: 0-150W4. Electricity: 0-99999mAh5. Energy: 0-999.9mWh6. Time: 0-99 hours7. Countdown: 0-24 hours8. Load resistance: 0-999.99Ohm9. Current / temperature10. Data output voltage11. Supply voltage

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On appearance: 1. 86mm hidden box and european 60mm round box is suitable. 2. White, black housing creates your colorful life. 3. White backlight protect your eyes. 4. Touch buttons to make simple operation. 5. Amazing silver frame opens your modern life. On functionality: 1. Powerful functions are available such as Modbus/WiFi etc. 2. 0.5 Degrees Celsius accuracy keeps temperature within the level you set. 3. Data memory when power is off. 4. 5+2 periods programmable maximize comfort and economy. 5. Create thermostat group to centrally control. 6. Integrated with Amazon Echo, Google Home, Tmall Genie, IFTTT. 7. Support device sharing. 8. All setting languages synchronize your time zone, address and language. 9. No limit to add room. 10. Support smart scene.

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Product Introduction 1) This High Accuracy 200000 Lux Digital Light Meter Lux meter LX1330B is new and never used. It is a precise instrument used to measure illuminance in the field, you can use it to measure the illuminance of different locations. With ultra-large screen, easy to read the measured data. Small size, light weight, convenient to carry. Features 1) New and high quality 2) High accuracy and rapid response 3) Data-hold function 4) Unit and sign display for easy reading 5) Holding for maximum measured value 6) Automatic zeroing 7) Meter corrected for luminous, efficiency function 8) Short rise and fall time Specifications 1) Display: 3 1/2 digit LCD display 2) Measuring range: 200, 2000, 20000 and 200000 Lux 3) Over range display: Highest digit of "1" is displayed 4) Repeatability:±2% 5) Temperature characteristic: 0.1%℃ 6) Photosensitive component Si-light Cell attached with light filter 7) Measuring rate: Approximately 2.0 time / sec 8) Power supply: 1 x 9V battery (NEDA 1604 or jls 006P or IEC6F22) 9) Working temperature: 0~40℃,(32°F to 104°F) 0~80%Rh 10) Storage temperature: -10~60℃, (14°F to 140°F) 0~80%Rh 11) Size: 16cm x 7.5cm x 4cm

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*Wide measurement range: 30~130dB*Accuracy up to 1.5dB*This unit was designed according to following standards: ----A. International electrician committee standard: IEC PUB 651 TYPE2 ----B. US national standard: ANSI S1.4 TYPE2*100% Brand New*With modern, compact, portable design.*Easy to use*Frequency weighting characteristic: A*Equipped with sponge ball to filter-out unwanted signals.*Max reading hold*Auto power off*Auto backlight display*Low battery indication*Approved by CE/ROHS/FCC standard*Under 1 year guarantee

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Features:1. Large LCD, easy-to-read 3.5-inch high-definition display.2. Durable protective shell can prevent impact, friction and collision.3. Non-contact AC voltage detection, top sensor probe design, more securely identify AC voltage.4. The high-resolution large screen can display 3 test results on the screen, including voltage, frequency, and analog bars.parameter:1. Dimensions: 143.4 x 70.9 x 15.7mm2. Display: 9999 times3. Screen: 3.5 inches4. Resolution: 0.11ohms5. S10 power supply: 1.5V (AAA) x 2 (not included)6. S11 power supply: 800 mA lithium battery7. Diode: automatically recognize the diode when it is lower than 3.0V8. DC voltage: 0.8V-620V +/-(0.5%+3), resolution: 0.001V9. AC voltage: 2.2V-620V +/-(0.5%+5), resolution: 0.001V10. Resistance: 1Ω-999.9ohms +/-(2.0%+5), 1kohms-60Mohms +/-(1.0%+3)11. V-Alert (non-contact voltage detection): buzzer alarm sound，on-site inspection: alarm buzzer, LCD screen display stripes12. Continuity: If the resistance is less than 30ohms, the buzzer will sound13. Frequency:- 1Hz-1000Hz +/-(1.0%+5) (ACV:2V-10V); resolution: 0.001Hz- 1KHz-60KHz +/-(1.0%+5) (ACV:10V-620V); resolution: 0.001HzPacking list:S10:S10 Multimeter x 1Test cable x 1Manual x1S11:S11 Multimeter x 1Test cable x 1Type-C charging cable x 1EVA cloth bag x 1Protective shell x 1Manual x1Note: The actual product is subject to the title model, the model machine of the picture is only for effect reference

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1. High-precision clamp head design, used for AC and DC high current measurement, input current: 100A2. The two-line display on the screen can display AC voltage, current and frequency at the same time3. The bottom dual input jack design, all functions are shared, convenient, fast and beautiful4. The single-sided meter pen storage card position is convenient for operation in any environment, and is highly efficient5. The back buckle hook design can be hung on belts, trouser pockets, pockets, and can be hung on a lanyard and neck6. Detection mode One-handed operation voltage detection, zero fire line discrimination7. V ~alert dangerous voltage alarm8. AC and DC voltage measurement (600V)9. Frequency measurement of AC and DC current: 100A10. Display: 6000 counts11. Clamp head size: 20 mm12. Battery: 3 x 1.5 V AA batteries (not included)13. Dimensions: 179 x 67 x 36 mmPacking list:1. Clamp meter x 12. Cloth cover x 13. K-type temperature probe x 14. Test lead x 1 pair5. Manual x 1

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1. Weight: About 400g2. Size: About 43x10 cm3. Material: ABS4. Alarm mode: Vibration5. Power supply: 9V battery (need to buy by yourself)6. Waterproof depth: 100 feet7. Scope of application: Public security inspection, police inspection, diving and salvage, professional archeology, etc.8. Detection environment: Any environment in grass, mud, dust, sand, black sand, fresh water or sea waterFeatures:1. Beautiful and practical, light and portable, easy to use2. Vibration and blue light alarm3. Automatic adjustment, good stability4. Tilt switch system, simple and convenient5. Sealed and waterproof, sturdy structure, durable6. With low battery indicator, built-in low battery sensor

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Product parameters:1. The sensitivity distance of detecting a dollar coin is ≥5cm.2, detection method: vibration, sound alarm2, power: 9V battery (not included)3, working environment: temperature -20 ° C -60 ° C4. Dimensions: 215.5*41.5*43.52mm5, packaging size: 25.5 * 6 * 6cm6, Pcs / Carton : 50pcs / box

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1. Sensitivity: A25-cent coin (60mm) 2. Iron pipe-tube in 20 to 120mm 3. Operating frequency: 35KHz 4. Operating current: Less than 8mA 5. Power supply: 6F22 9V battery 6. Low battery indicated 7. Alert: Audio & LED light 8. Tuning: Automatic 9. Temperature environment: -10 ~50 degree C 10. Dimension: 420 x 80 x 40mm 11. Weight: 450g

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1. Recording format: WAV, MP32. Recording time: 20000 (minutes)3. Video: Does not support video shooting4. Product size: 100x21x8MM5. Material: aluminum titanium alloy + back clip design6. Using three-microphone dynamic noise reduction technology, the recording distance can be increased to 100 meters (specific environment test), high-definition recording Chinese display, to meet your work needs7. DSP acoustic noise reduction, Intel high-speed flash memory chip, save recording files quickly8. Digital encryption makes recording files more secure9. Intelligent voice control, you can set the recording time and start recording intelligently10. Other functions: support multi-music format playback/record while charging/monitor recording/save when power off/delete files11. Packing list: earphone, data cable, manual

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Features1. Built-in 250mAh battery, use time 25h. 2. One-key recording, with LCD recording indicator, easy to operate. 3. 6 recording modes, 3D sound effects, support voice activation function (VAR). 4. Support loop/A-B repeat/pause/delete. Equipped with a telephone adapter to support telephone conversation recording. 5. Small pocket size, good as MP3 music player. 6. Built-in microphone and speaker, with external microphone and earphone.Specification1. Recording format: WAV format 2. Recording power: 0.8mA-12mA 3. Recording sampling rate: 8KHz/16KHz/48KHz 4. Recording bit rate: WAV (32/128/192/384Kbps) 5. Music playback format: MP3, WAV 6. Headphone jack: 3.5pie stereo jack 7. Headphone output: (L) 9mW???(R) 9mW (32Ohm) max 8. USB interface: MICRO-Mike 5P/DC5V-300MAh 9. Storage: Embedded Flash 10. Built-in speaker output: 800mW 11. Built-in speaker: 8R/0.5W diameter 26 12. Built-in MIC: Omni-directional capacitor MIC 13. Display: 1.0 inches 14. Distortion: 90dB 15. Signal to noise ratio: 0.06% 16. Operating temperature: -10 to 40 degrees Celsius 17. Body weight: 32.5g (bare metal) 18. Body size: 85mm??36mm??14mm 19. Power supply mode: lithium battery/3.2-4.2V 20. Battery type: LiCoO2 21. Battery capacity: 250MAh 22. Battery weight (g): 4g 23. Watt hours per battery: 0.81wh 24. Lithium content: 0.066g 25. Battery size: 3.5mm x 14mm x 55mm 26. Battery life: about 30 hours of recording, about 6 hours of playback (plug in headphones) 27. Support system: Windows XP&Vista/2K/ME/98 (driver installation required) /Mac OS 10Package listRecorder x 1 Headphone x 1 Microphone x 1 USB cable x 1 Telephone adapter x 1 Telephone line cable x 1 Audio cable x 1 User Manual (English) x 1

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Product Functions1. A977 passive preamp active speaker volume dual-channel controller is small in size and suitable for active speakers or preamp/post-amp, it supports full-balance or input and output of single-ended signal. The product has functions of independent L/R channel volume adjustment, 2 signals input and 2 signals output. It provides balanced XLR and unbalanced RCA connectors which are automatically converted to each other, with a selector switch facilitates the signal switch of input/output.2. Small size, big intelligence. The product is of small size, but has well-function connecters. It is suitable for decoders and speakers without volume adjustment. the product has the design of balanced input/output and RCA input/output architecture, with switching function. The operation of the product will not cause loss of signal source. Generally, the audio signal released from the decoder is the original sound source signal. Great dynamics will not cause loss of sound quality, retaining the complete original signal source. Specification1. Input/output impedance: 10KΩ - 50KΩ2. 2 in 2 out switchover, unbalanced RCA connector and balanced XRL connector for input/output3. Input: unbalanced RCA connector / balanced XLR connector (convert selection)4. Output: unbalanced RCA connector / balanced XLR connector (convert selection)5. Product net weight: 320g6. Product dimensions: length 145mm x width 65mm x height 43mm

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B026 – 6 Input 2 Output Or 2 Input 6 Output Audio Signal Source Selection Switcher RCA PortProduct description:6 input 2 output or 2 output 6 input stereo audio signal selection switcher, with RCA port designThe produce adopts passive design, with direct insertion, and has lossless switched transmission of input and output signals,The product is mainly used to select and switch among a variety of stereo signal input and output through a common set or multiple sets of equipment, that is, a variety of stereo signal sources of devices, such as TV audio, MP3 player, CD player, video game, mobile phone, tablet, computer, record player, need to be output on the amplifier or on active speakers,The 6-channel audio signal selection switcher solves complicated line plug in and plug out, which uniformly connects device input signal sources to the switcher for easily selection.The product uses standard RCA port design for input and output, and uses precise 6-level and 2-level manual switch design for the switcher, Product parameters:Power supply: passive design, direct insertionMaterial: all-metal caseInput and output impedance: 10KΩ - 50KΩFrequency response: 20 – 20 kHzDistortion: <0.002%Insertion loss: <0.01dBSignal gain: 0dBSignal to noise ratio S/N: >98dBInput port: standard RCA portOutput port: standard RCA portNumber of input channels: 6-channel stereo input (reverse 6-channel switched output)Number of output channels: 2-channel stereo output (reverse 2-channel switched input)Control switch: 6-level and 2-level precise manual selection switchInput switching channel: 6 channelsOutput switching channel: 2 channelsNet weight: 0.26 kgGross weight with packaging: 0.37 kgProduct size: length 122 mm X width 50 mm X height 38 mmPackaging size: length 185mm X width 135mm X height 65mmKit list: 1 X 6 input 2 output or 2 input 6 output stereo audio signal selection switcher RCA port

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Product description:1. If you have a line level signal source (TV audio, MP3 player, video game machine, cell phone, tablet, computer, record player, etc.) to output to other devices at the same time (such as power amplifier and speakers or headphones), this product can solve the problem of one set of stereo input, which can allocate four sets of stereo, output independent four sets of volume adjustment function, with each channel output band + 20dB gain.2. For a powerful signal amplifier distributor, you may need to run several long lines between the TV audio line and a receiver on the other side of the room, providing high gain through any line level signal source, allowing longer cable lines to run, or requiring "buffering" to solve low volume problem. You can use it to add signal amplifiers between the line level signal source and the power amplifier, and the RCA jack matches almost all other product interfaces.3. This product can increase the sound quality of the control signal and reduce the bottom noise. With a large dynamic range, it will not produce a burst. The output volume is controlled by sensitivity adjustment knob, and DC 12V power supply is adopted to ensure full thrust.Product parameters:1. Input impedance: 100K Ohm2. Input level: +14 dBV3. Output impedance: 47 Ohm per output channel4. Frequency response: 20 Hz-20K Hz5. SNR: Less than 107dB6. Total harmonic distortion: Above 0.02%7. Intermodulation distortion: Above 0.01%8. I/O interface: Stereo RCA9. Power supply: DC-12V10. Net weight: 0.31 kg11. Product weight after packaging: 0.46kg12. Product size: length 109 mm x width 79mm x height 38 mm13. Package size: length 185mm x width 135mm x height 65mmKit list:1. 1 in-4 out-front Stereo Signal Amplifier Allocator x 12. DC-12V Power Adapter (gauge American) wire length: 100cm

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Product presentation:1. Support power is 200 watts: 1 and 2 power amplifiers with 1 pair of speaker selector switches, ideal for home theater sound systems, power of 200 watts per channel, suitable for 4–16-ohm impedance speakers, with a compact thin desktop design, compatible with any home theater setting.2. AMPC Amplifier Control: The two-channel speaker switcher controls the stereo connection between two amplifiers and a set of speakers, or the combination connection switch selection, input/output through the screw-type connector terminals, which accept 14AWG speaker wire.3. Independent audio control: With independent audio source channel volume control. The button design allows you to individually select each amplifier to customize your home listening experience, and the volume switch controls the volume adjustment of the output speakers.4. Simple installation: The enjoyment of quality audio performance requires connecting the left and right channel outputs of the amplifier to the left/right and 1/2 amplifier inputs with 1 on 2 speakers on a mini dual channel controller.5. Overload protection: Equipped with a front panel control switch consisting of volume control knob and amplifier switch.Provide high quality audio and overload safety protection circuits and long-term reliability.Product Parameter：1. 2 input 1 output amplifier speaker selector switcher2. Convenient audio control accommodates 2 amplifiers with 1 pair of speakers.3. Home theater stereo amplifier system support, independent audio source channel volume control4. Input/output: screw type connector terminal, compact desktop/desktop mini design5. Front panel button control center, the product needs no power supplyBuilt-in electronic overload protection circuit6. Power processing: 200 watts per audio/speaker channel7. Speaker selector type: 2 soundtracks8. Speaker cable support: 14 wire gauge (14 AWG)9. Support impedance: 4-16 ohms10. Frequency response: 20Hz-20kHz11. Net Weight: 1.06 kg12. Packed weight: 1.21 kg13. Product size: Length 160mm x Width103mm x Height 55mm14. Package size: Length 260mm x Width 185mm x Height 65mm15. Kit list: 2 input 1 output amplifier speaker switcher output with volume adjustment function x 1

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Features: The output of 4 groups of speakers can be divided into 4 zone switch control, each group of speakers can independently select A and B power amplifier output, and each group of speaker output can independently turn on and off the function.Do you have 2 power amplifiers and 4 sets of speakers that need to be connected to each other?Do you need 2 amplifiers and 4 sets of speakers to get stuck?A powerful amplifier and audio switcher can solve these problems,1. 2 power amplifiers push-button select switch input,4 sets of stereo speakers push-button select switch output (4 sets of speakers can be opened or closed independently)2. Sets of stereo speakers can sound at the same time, you can also turn off one group of speakers or more groups of speakers individually, manually select the pushbutton switch3. The maximum power of each channel is 300W4. Signal input provides vacuum tube power amplifier signal no-load protection function5. Manual selection of input and output switching, straight plug straight use, switching signal stability, between channels will not produce another dry close or noise6. Compact design of solid metal shell, easy installation, the product does not need external power7. Simple installation: input and output plug and play easy installation, you can enjoy different audio experienceProduct Parameter:1. Compatible with all types of power amplifiers and speakers2. Input/output accepts heavy-duty speaker wire or speaker pin wire through the terminal port3. Connect the power amplifier to amplifier A and B4. Connect the loudspeaker to position 1-2-3-4 respectively5. Turn on your power amplifier stereo device and the product requires no external power supply6. Input: 2 sets of inputs (banana plug)7. Output: 4 sets of output (banana plug)8. Power: up to 300W9. Metal material, fine steel housing, compact size suitable for any system10. Channel Power: Each channel supports up to 300W of power11. Frequency response: 10Hz-50KHz12. Product size: length 240mm X width 105mm X height 55mm13. Net weight :0.92 kg14. Kit list: 1 x 2 input 4 output power amplifier switch distributor

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1. 8-slot independent charging, which can charge eight AAA, AA, or four C or D batteries at the same time or at will 2. Fully power off to protect the battery. 3. LCD displays charging status. 4. With USB cable, universal 5. Light weight and portable. Product parameters: 1. Input: DC 5V / 2A, 50 / 60Hz. 2. Output: DC 1.2V / 1800mA. 3. Weight: 199.5g.

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1. 8-slot independent charging, can charge eight AAA, AA batteries simultaneously or at will. 2. 100-240V voltage, universal worldwide. 3. 360-degree large area heat dissipation, reducing the load on the charger. 4. Intelligent chip, multiple protection, safer charging. 5. 38 copper core wires, corrosion-resistant, anti-oxidation, extend the life of the wires. Product parameters: 1. Input: AC 100-240V, 50 / 60Hz. 2. Output: DC 2.4V 800mA. 3. Suitable for battery types: Ni-MH, Ni-Cd rechargeable batteries. 4. Size: 17.5x9x2.9cm. 5. Charging interface: external power supply. Packing list: Charger host x 1 Adapter x 1 Manual x 1

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1. 4-slot independent charging, which can charge AAA and AA batteries at the same time or at random, and can charge two 9V Ni-MH batteries. 2. AC 100-240V wide voltage, universal worldwide. 3. Automatically cut off the lights when fully charged to protect the battery. 4. Multiple protections, use more at ease. 5. LED indicator shows charging status. 6. The groove design is convenient for quickly removing the battery. Product parameters: 1. Input: AC 100-240V, 50 / 60Hz. 2. Output: DC 1.2V 200mA, AA 200mA x 4, AAA 100mA x 4, 9V Ni-MH battery 30mA x 2. 3. Size: 12x7.4x3.7cm. 4. Material: ABS + PC fireproof material. Packing list: Charger host x 1 Power cord x 1 Manual x 1

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1. 4-slot independent charging, which can charge AAA and AA batteries at the same time or at random, and can charge two 9V Ni-MH batteries. 2. AC 100-240V wide voltage, universal worldwide. 3. Automatically cut off the lights when fully charged to protect the battery. 4. Multiple protections, use more at ease. 5. LED indicator shows charging status. 6. The groove design is convenient for quickly removing the battery. Product parameters: 1. Input: AC 100-240V, 50 / 60Hz. 2. Output: DC 1.2V 200mA, AA 200mA x 4, AAA 100mA x 4, 9V Ni-MH battery 30mA x 2. 3. Size: 12x7.4x3.7cm. 4. Material: ABS + PC fireproof material. Packing list: Charger host x 1 Power cord x 1 Manual x 1

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1. 4-slot independent charging, which can be used to charge AAA, AA, C or D batteries at the same time or at random, and can charge two 9V batteries 2. Multiple protections, safer to use. 3. LCD display shows charging status. 4. AC 100-240V wide voltage, universal worldwide. 5. Automatically trickle charging to protect the battery. 6. Car-mounted and discharge function, continuous power when going out. 7. Flip cover design to prevent damage to charger equipment. Product parameters: 1. Input: AC 100-240V, 110W (maximum), DC 12V 800mA. 2. Output: 4.8V 1000mA, 9V 25mA (AA / AAA / C / D: 1000mA with one and four currents). 3. Size: 19.5x9x5cm.

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1. Four independent charging channels: With independent charging control chip, precise control of the charging situation of each charging slot, the working power of the charger is 12V-3A, and a dedicated DC switching power supply is used2. There are four levels of charging current available for selection, 200/300/500/700/1000mA, among which, if there is only 1, 4 channels with batteries, the current levels are: 200/300/500/700/1000 / 1500/2000mA, the discharge battery can be set to 200/300/500/700/1000mA3. The discharging mode does not switch to charging, and the battery discharge capacity is displayed. In charging mode, the 4.21V charger is judged to be fully charged4. LCD screen: Can display the real-time charge/discharge capacity, voltage, current, and time of the 4 channels of batteries5. Four working modes: Charge, discharge, repair and capacity test and battery internal resistance test6. Applicable battery type: Lithium battery, model: 10440, 14500, 16340, 18500, 18650, 26650, 26500; Ni-MH battery, model: AA, AAA, C, D7. Working temperature: 0 to 40 degrees celsius8. Note: The product does not contain batteriesFunction button:1. MODE operating mode selection button2. DISPLAY display mode button3. CURRENT current adjustment button4. SLOT, can individually adjust the working mode of each channelThe specific operation method of the charger:1. Long press MODE for 2 seconds to enter the working mode to select, and then press this key to have four working modes to choose from, namely charge, discharge, repair capacity test and battery internal resistance test2. Press DISPLAY to display the charge current, battery voltage, battery power, and battery charge and discharge time respectively.3. When power on, the charger defaults to the charging mode and the charging current is 500mA4. When powering on, press CURRENT to adjust the current. When entering work, if you want to adjust the current again, you need to switch the working mode to press this key to be effective. The charge and discharge current can be adjusted.5. Press SLOT to adjust the working mode of each channel individually6. When the temperature of the battery exceeds 40 degrees when the battery is charged or the temperature of the PCB board exceeds 40 degrees, the fan will start to rotate.7. Select the capacity test working mode, the current can be the same as charging

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About the product1. Replacement LCD display + touch screen digitizer assembly for Xiaomi Redmi Pro. 2. Replace your broken or unusable item with a new one. 3. Make your device look more refreshing than ever. 4. Completely fit and work. 5. Each item has been checked and in good condition before shipping. 6. Professional installation is highly recommended. We will not be responsible once the screen is installed.Before Installation Notes1. Tips 1: Test before installation When testing, do not remove any protective film or tags. Please pay attention to the problem of static electricity. Before attempting any repair, be sure to ground yourself is an ESD (electro static discharge) strap. This will prevent static electricity from damaging the electronic components within the phone. Ensure you wear eye protection and use caution not to cut your finger with the glass splinters. 2. Tips 2: Simulates testing Screen replacement is very fragile product. We strongly suggest test before installation. Please simulates testing, which means mobile phone apart, (motherboard + LCD or screen) connected audio cable and new replacement, power on, test finished. If test OK, please install it. If it can not show, please contact us at the very first time. And please do not force it to be installed in mobile phone. We will not be responsible once the screen is installed. 3. Tips 3: Do not over-bend cable Please make sure LCD cable Do not over-bend. Over 90 degrees bent will cause black display.

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1. Portable USB powered Mug heater - Keep the morning coffee hot at your desk while you work, or keep a cup of hot tea steamy while you relax on the couch. 2. Decorative warmer cup use for coffee, tea, hot cocoa, Soup, water, milk and more. (note: cannot be used to heat up beverages, just used to keep it warm). 3. Cute cookie designed for mug warmer, lightweight and portable, easy to tote and take anywhere. 4. One button operation, just follow simple 3 steps, first connect the USB cord to your computer or any USB port in order to get power resources. Then, place your cold cup on the warmer mat. Finally press the ON button to keep the cup warm and enjoy your hot drinks.

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1. Size: 196*117*204mm 2. Weight: 374g 3. Material: ABS + silica gel 4. Power: W-7W 5. Input voltage: DC5V 6. Charging current: 1A 7. Working current: 0.4A-1.4A 8. Fan speed: low-speed gear: 2.54m/s, middle-speed gear: 3.42m/s, high-speed gear: 3.94m/s 9. Motor speed: low-speed gear: 1570rpm, middle-speed gear: 2050rpm, high-speed gear: 2450rpm 10. 360 degree free rotation, large area circulation air supply. Let you enjoy the cool from any angle 11. Using brushless DC motor to reduce noise has high efficiency and excellent performance. 12. Using standard USB charging line, it can be charged by mobile power supply, adapter or computer. 13. Good quality and durability

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Before Installation Notes1. Tips 1: Test before installation When testing, do not remove any protective film or tags. Please pay attention to the problem of static electricity. Before attempting any repair, be sure to ground yourself is an ESD (electro static discharge) strap. This will prevent static electricity from damaging the electronic components within the phone. Ensure you wear eye protection and use caution not to cut your finger with the glass splinters. 2. Tips 2: Simulates testing Screen replacement is very fragile product. We strongly suggest test before installation. Please simulates testing, which means mobile phone apart, (motherboard + LCD or screen) connected audio cable and new replacement, power on, test finished. If test OK, please install it. If it can not show, please contact us at the very first time. And please do not force it to be installed in mobile phone. We will not be responsible once the screen is installed. 3. Tips 3: Do not over-bend cable Please make sure LCD cable Do not over-bend. Over 90 degrees bent will cause black display.About the product1. Replacement front screen outer glass lens for Samsung Galaxy J4+ / J6+ / J610. 2. Replace your broken or unusable item with a new one. 3. Make your device look more refreshing than ever. 4. Completely fit and work. 5. Each item has been checked and in good condition before shipping. 6. Professional installation is highly recommended. We will not be responsible once the screen is installed.

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1. Load-reducing structure design, comfortable and lightweight. 2. Halter/desktop/handheld three-in-one, easy to carry. 3. Adjust the air supply 180 degrees to meet different needs. 4. Built-in 3000mAh high-capacity battery, 8 hours of long-lasting battery life. 5. It can be used to charge mobile phones and is convenient to go out. 6. Three levels of wind power can be adjusted, soft/powerful switching at will. 7. It can be used as a mobile phone holder. 8. Parameters: Battery capacity: 3000mAh Battery voltage: 3.7V Gear position: 3 gears Use time: 4-12 hours Charging time: about 4 hours

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1. Load-reducing structure design, comfortable and lightweight. 2. Halter/desktop/handheld three-in-one, easy to carry. 3. Adjust the air supply 180 degrees to meet different needs. 4. Built-in 3000mAh high-capacity battery, 8 hours of long-lasting battery life. 5. It can be used to charge mobile phones and is convenient to go out. 6. Three levels of wind power can be adjusted, soft/powerful switching at will. 7. It can be used as a mobile phone holder. 8. Parameters: Battery capacity: 3000mAh Battery voltage: 3.7V Gear position: 3 gears Use time: 4-12 hours Charging time: about 4 hours

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1. Load-reducing structure design, comfortable and lightweight. 2. Halter/desktop/handheld three-in-one, easy to carry. 3. Adjust the air supply 180 degrees to meet different needs. 4. Built-in 3000mAh high-capacity battery, 8 hours of long-lasting battery life. 5. It can be used to charge mobile phones and is convenient to go out. 6. Three levels of wind power can be adjusted, soft/powerful switching at will. 7. It can be used as a mobile phone holder. 8. Parameters: Battery capacity: 3000mAh Battery voltage: 3.7V Gear position: 3 gears Use time: 4-12 hours Charging time: about 4 hours

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1. Material: ABS/PP/electronic components 2. Battery voltage: 3.7V-4.2V 3. Output power: 4W 4. Input voltage and current: DC5V/1000mAh 5. Battery capacity: 4000mAh 6. Charging time: about 6 hours when fully charged 7. Working hours: the first gear can be used for about 27 hours; the second gear can be used for about 13 hours; the third gear can be used for about 6.5 hours; the fourth gear can be used for about 4 hours 8. 5 turbine blades, which can make slow wind softer and faster wind wider 9. Separated fan blade design, easy to clean 10. Can be used in dormitory, camping, bedside table, desktop, office 11. Can rotate 360 degrees 12. Product size: 200.5x87x203mm 13. Weight: 540g

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Feature:1. Three levels of wind volume: weak wind>natural wind>strong wind. The wind on the left and right sides is even.2. No wing design, you dont have to worry about your hair being caught by the fan blades.3. Equipped with 2600 mAh battery, brand new upgrade, continuous use time can reach 8-18 hours (depending on speed)4. The neck fan has 46 ventilation holes to keep the face cool and keep makeup. A 360-degree refreshing experience, safe for children and adults to use.5. Packing list:1x hands-free personal fan1x USB charging cable1x user manual

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1. Made of high quality metal material, durable to used. 2. Install your precious LCD Monitor or photo flame with confidence. 3. Metal construction provides safety loading the device. 4. Simple design, easy for installation. 5. Suitable for below 18.5 inch LED LCD Flat Screen Monitor or photo frames.

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1. 12.1 inch LED display, 16:9, 1280*800 pixel resolution 2. Front dual stereo speakers audio output 3. Support SD, MMC card up to 16GB(not included) 4. Video play support 720P, AVI RMVB MP4 format, audio play support MP3, WMA format, support JPEG images 5. Support USB 1.1 or USB 2.0 port 6. Support image browsing with background music (MP3) function 7. Support multiple languages: Chinese, English, French, German, Italian, Spanish, Portuguese, Dutch, Polish 8. Time clock, calendar, alarm clock, time switch 9. Output interface: Earphone output port 10. Control modes: Manual, remote control or boot automatically play 11. External power supply: AC 100-240V DC 12V 1A

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1. Made of quality material, durable to use 2. Ultra modern design and easy to use 3. Bright LED display 4. Display your favorite photos or videos without a computer 5. View all your images in automatic slideshow mode 6. Selectable viewing intervals from 3 to 60 seconds 7. Listen to MP3 music files 8. Built-in stereo speakers 9. Work with secure digital (SD), Multi Media Card (MMC), Memory Stick (MS) Cards 10. Selectable slide show photo transitions 11. USB Port for viewing images directly from your USB flash disk or computer 12. Tabletop or wall mountable 13. Easy remote control operation 14. Variable image control operation 15. Adjustable brightness color & contrast 16. Multi-language menus: Default English and Chinese(Can customize multi-language) 17. The next alarm clock, clock, calendar, slideshow mode, timer switch, pictures can be rotated 360 degrees. Music, movie playback speed can be high-powered fast forward and rewind

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4K hd player is powered on and automatically plays video, pictures, music, video supports power off memory playbackIt can be connected to 4K TV, projector, monitor (HDMI to VGA conversion head can be used), new and old TV, and splicing screen.Support 4K full hd 4096X2160P resolution below, MP4, MKV, TS, M2TS, MTS, TP, TRP, WMV, IFO, ISO, VOB, DAT, AVI, MPG, MOV, RM, RMVB, DIVX, XVID, FLV, F4V, blue and other formats, support PPT presentation.Image: supports JPG, BMP, PNG, GIF, TIFF and other formats.Audio: DTS lossless music, PCM, AC3, MP3, FLAC, WMA, AAC, WAV, etc4K hd single player, power on and play, U disk SD card playSupport HDMI+AV+USB+MiniSD, decoding h. 265/ h. 264 videoFunction introduction:1. This machine is suitable for home video and audio playback and commercial demonstration, and supports automatic loop video playback when powered on;2. Turn on the power and automatically play pictures with background music; Power on and automatically play music files.3. Supports playback of video, music, pictures and files in external usb disk, portable hard disk and MiniSD card4. Supports 4K 10bits h. 265/ h. 264 video decoding5. Supports 1080P multiformat video decoding (vc-1, mpeg-1/2/4, VP8)6. Supports 1080P video encoding, h. 264 and VP8 format7. HDMI2.0 supports 4K 60Hz display and supports HDCP 1.4/2.28. Interface: HDMI2.0/CVBS/2 USB/MiniSD/IR interface9. Power supply specification: 100-240v, 50/60hz access.10. Power supply mode: external adapter,5V power access11. Main engine size: 8*7.8*1.5cm; Weight of main engine: 99g; Total weight: 420g (including accessories)12. Video broadcast formats: FLV, MPEG, AVI, MKV, 3 gp, MP4, WMV, MOV, MPG, DAT, TP, TRP, TS, M2TS, etc13. Audio playback format: MP3,AAC,WMA,WAV,APE, etc14. Image playback format: JPG/JPEG/BMP/GIF/PNG, etc15. System language: English/simplified Chinese/traditional Chinese/German/Spanish/French/Portuguese/Italian/Dutch, etcNote: due to differences in coding and compression software, the above files in the same format may not be fully supported.

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Function introduction:1. This machine is suitable for home video and audio playback and commercial demonstration, and supports automatic loop video playback when powered on;2. Turn on the power and automatically play pictures with background music; Power on and automatically play music files.3. Support to play external U disk, mobile hard disk,SD card video, music, pictures, files4. Supports 4K 10bits h. 265/ h. 264 video decoding5. Supports 1080P multiformat video decoding (vc-1, mpeg-1/2/4, VP8)6. Supports 1080P video encoding, h. 264 and VP8 format7. HDMI 2.0 supports 4K 60Hz display and supports HDCP 1.4/2.28. Interface: HDMI2.0/CVBS/2 USB/SD/IR interface9. Power supply specification: 90-230v, 50/60hz access.10. Power supply mode: external adapter,5V power access11. Main engine size: 82*73*19cm; Weight of main engine: 88g; Total weight: 420g (including accessories)12. Video broadcast formats: FLV, MPEG, AVI, MKV, 3 gp, MP4, WMV, MOV, MPG, DAT, TP, TRP, TS, M2TS, etc13. Audio playback format: MP3,AAC,WMA,WAV,APE, etc14. Image playback format: JPG/JPEG/BMP/GIF/PNG, etcSystem language: English/Chinese simplified/traditional/German/Spanish/French/Portuguese/Italian/Dutch and other languagesNote: due to differences in coding and compression software, the above files in the same format may not be fully supported.

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