Consumer Electronics

1. Can be used as a sound source to connect to Bluetooth headsets and speakers2. E-book portable e-book, multiple functions, just to give you a better reading experience3. It is also a radio, stable and reliable, not easy to disconnect, listen to popular broadcasts anytime, anywhere4. 360-degree wheel design, easy operation5. Equipped with AB repeat +/-8-level variable speed playback, a good partner for practicing oral English6. Small size, easy to carry7. Fully charged in 20 minutes, can be put continuously for 38 hours, charged for 5 minutes, can be played continuously for 6 hours8. Support OTG mobile phone interconnection9. Display: 1.2-inch OLED color display, resolution: 800*48010. Music format: MP3.WMA.WAV, APE, FLAC11. Bluetooth version: 4.212. EQ sound effects: normal, rock, funk, hiphop, jazz, classical, electronic music, custom13. Lyric format: LRC14. E-book: TXT, LRC15. FM radio: 87.5MHz-108MHz/76MHz-90MHz16. Recording format: MAV, MP317. Frequency range: 20Hz-20KHz18. Signal to noise ratio: greater than or equal to 90dB19. Battery capacity: 170mah20. Menu language: Simplified Chinese, Traditional Chinese, English, Korean, Japanese and other languages21. Size: 3.8x3.7x1cm

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1. You can record while writing, easy to use2. Intelligent noise reduction chip, long-distance unvoiced technology, high restoration of lossless original sound3. Built-in time chip, record file generation time and end time, accurate to the second, easy to organize, and improve credibility4. One-key recording, one-key saving, simple operation5. Can be clipped in pockets, bags, books, not easy to lose, easy to carry6. After the voice control recording mode is turned on, it will automatically record only when there is sound, and automatically pause when there is no sound.7. Support power-on setting password, intimate protection of audio data8. You can directly delete unnecessary recording files on this machine, which is convenient for sorting out documents9. Support replacement of refills10. When the battery is low, the recording will save the file in advance, and then turn it off for 1 hour to fully charge it, and continue to record for 38 hours11. Battery capacity: 120mah12. Length: 142mm

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1. Audio input: Bluetooth + AUX + U disk + computer USB sound card (plug and play)2. Adapter power supply: DC 9-24V (high voltage is recommended for high power)3. Output power: 50Wx24. Adapted speaker: 10-100W, 4/8 ohm5. Number of channels: Left and right dual channels (stereo)6. Bluetooth version: 5.07. Transmission distance: More than 15 meters, no obstruction8. Bluetooth name: Wuzhi Audio9. Protection mechanism: Overvoltage, undervoltage, overheating, DC detection, short circuit protection10. Power supply voltage:- 12V: 8 ohms/12W+12W, 4 ohms/20W+20W- 15V: 8 ohms/18W+18W, 4 ohms/30W+30W- 19V: 8 ohms/32W+32W, 4 ohms/40W+40W- 24V: 8 ohms/38W+38W, 4 ohms/50W+50W11. Size: About 6x6x1.8 cm12. Weight: About 68g13. Reminder: There will be enough output power only when the audio input is enough and the power supply/current is enough. the higher the power supply voltage, the higher the relative power, and speakers with different impedances will have different output powers. in the case of sufficient voltage and current, the larger the horn ohms, the smaller the relative sound power

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1. Bluetooth wireless technology standard configuration, strong and stable signal, support Bluetooth headset, Bluetooth speaker2. Support FM radio3. Support AVI format video playback, which can be watched anytime, anywhere4. Support OTG to connect to mobile phones or tablets, download files anytime, anywhere5. Under the condition of waking up, one key to start recording, press again to save the recording, support pause/continue recording in between6. Intelligent voice control recording, if there is a sound (more than 30 decibels), it will be recorded, and if there is no sound (or less than 30 decibels), it will be listened.7. Battery: polymer lithium battery, 300mAh8. Recording time: about 40 hours9. Playing time: about 30 hours10. Recording format: support MP3, WAV format11. Display screen: 1.5 inches, 128x160 pixels, TFT display, adjustable brightness and darkness12. Bluetooth module: Bluetooth 4.013. Headphone jack: 3.5mm14. USB interface: Micro USB15. Body material: zinc alloy, 3.5D high-strength glass mirror16. Product size: 88x41x9mm

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1. Automatic noise reduction recording, clear voice and noise reduction2. Intelligent voice control recording, if there is sound (more than 30 decibels), it will be recorded, and if there is no sound (or less than 30 decibels), it will be paused and saved.3. Recording files, encrypted and protected4. Built-in 120mAh rechargeable lithium battery, 24 hours continuous battery life5. Recording time: about 36 hours6. Charging time: about 30 minutes7. Sampling rate: 48KHz8. Number of bits: 192Kbps9. Product size: 32 x 27 x 8mm10. Product weight: 99g

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1. High-definition noise reduction, bringing you high-fidelity and clearer recording sound quality and playback2. Lightweight design, easy to carry, high concealment3. Automatically save when power off4. Large capacity U disk function5. OTG direct connection, you can play and manage recording files on your mobile phone6. Recording method: one-key recording7. Charging time: about 1 hour8. Playing time: about 15 hours9. Recording time: about 20 hours10. USB: Micro USB11. Battery: Built-in 110mAh capacity polymer lithium battery12. Product size: 34*34*7.9mm13. Product weight: about 11g

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1. High-definition noise reduction, bringing you high-fidelity and clearer recording sound quality and playback2. Lightweight design, easy to carry, high concealment3. Automatically save when power off4. Large capacity U disk function5. OTG direct connection, you can play and manage recording files on your mobile phone6. Recording method: one-key recording7. Charging time: about 1 hour8. Playing time: about 15 hours9. Recording time: about 20 hours10. USB: Micro USB11. Battery: Built-in 110mAh capacity polymer lithium battery12. Product size: 34*34*7.9mm13. Product weight: about 11g

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1. Turn on the recording mode, just use your finger to gently turn the switch to NO2. Built-in high-sensitivity recording chip, high-definition recording at a distance of 80 meters3. Intelligent voice control recording, recording when there is sound (more than 30 decibels), and listening when there is no sound (or less than 30 decibels)4. Connect the OTG adapter to play and manage files on the phone5. Battery: Built-in 100mAh polymer lithium battery6. Charging time: about 1 hour7. Sampling rate: 48KHz8. Recording format: WAV9. Product size: 13.5x1.2cm

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1. Hole 12mm2. Temperature resistance, long life3. Working current: 3A4. Working voltage: 125V5. Nut torque: M126. Operating stroke: 38mm7. Head protection: Level 408. Operation mode: Open type9. PBS-33B waterproof self-reset10. Contact structure: Normally open button11. Temperature range: -30-+85 degrees Celsius12. Product use: Rice cookers, hot water boilers, audio-visual products, digital products, remote controls, communication products, household appliances, security products, toys

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1. Hole 12mm2. Temperature resistance, long life3. Working current: 3A4. Working voltage: 125V5. Nut torque: M126. Operating stroke: 38mm7. Head protection: Level 408. Operation mode: Open type9. PBS-33B waterproof self-reset10. Contact structure: Normally open button11. Temperature range: -30-+85 degrees Celsius12. Product use: Rice cookers, hot water boilers, audio-visual products, digital products, remote controls, communication products, household appliances, security products, toys

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1. Audio source input: Bluetooth + AUX + U disk + computer USB (plug and play)2. Adapter power supply: DC5-24V (high voltage is recommended for high power)3. Output power: 100Wx24. Adapted speakers: 20-200W, 4-8 ohms5. Number of channels: Left and right dual channels (stereo)6. Bluetooth version: 5.07. Transmission distance: More than 15 meters, no obstruction8. Bluetooth name: Wuzhi Audio9. Protection mechanism: overheating, overcurrent, short circuit protection10. Power supply voltage:- 12V: 8 ohms/20W+20W, 4 ohms/40W+40W- 15V: 8 ohms/35W+35W, 4 ohms/60W+60W- 19V: 8 ohms/55W+55W, 4 ohms/80W+80W- 24V: 8 ohms/70W+70W, 4 ohms/100W+100W11. Size: About 6x6x2.9 cm12. Weight: About 66g13. Reminder: There will be enough output power only when the audio input is enough and the power supply/current is enough. the higher the power supply voltage, the higher the relative power, and speakers with different impedances will have different output powers. in the case of sufficient voltage and current, the larger the horn ohms, the smaller the relative sound power

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1. Slim body, carry it with you2. Designed for students to improve academic performance, English, listening to music, and entertainment3. Support AMV, AVI video playback format4. Bluetooth wireless technology standard configuration, strong and stable signal, support Bluetooth headset, Bluetooth speaker, etc.5. Support TF card expansion6. Support multi-format lossless music such as MP3/APE/FLAC/WAV/WMA7. Built-in 300mAh capacity lithium ion battery8. Support OTG mobile phone direct connection9. Recording time: about 35 hours10. Playing time: about 30 hours11. Display screen: 1.77 inches TFT display, 128x160 pixels, adjustable darkness12. Bluetooth module: BlueTooth 4.013. Headphone jack: 3.5mm14. USB interface: Micro USB15. Control panel: capacitive touch panel (support backlight)16. Product size: 86x42x9mm17. Product weight: about 73.6g

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1. Ultra-thin design, compact and portable2. Easy to use, one key to start recording3. Automatic noise reduction recording4. Intelligent voice control recording, if there is sound (more than 30 decibels), it will be recorded, and if there is no sound (or less than 30 decibels), it will be paused and saved.5. You can add a password to the recording file, encrypt and protect the data security6. Automatically save when power off7. Built-in 90mAh polymer lithium battery8. Recording time: about 13 hours9. Playing time: about 8 hours10. Recording format: WAV11. Music format: MP3/WMA/WAV12. Sampling rate: 48KHz13. Number of bits: 192Kbps14. Product size: 43x23x5mm

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1. Automatic noise reduction recording, clear voice and noise reduction2. Intelligent voice control recording, if there is sound (more than 30 decibels), it will be recorded, and if there is no sound (or less than 30 decibels), it will be paused and saved.3. Recording files, encrypted and protected4. Built-in 120mAh rechargeable lithium battery, 24 hours continuous battery life5. Recording time: about 36 hours6. Charging time: about 30 minutes7. Sampling rate: 48KHz8. Number of bits: 192Kbps9. Product size: 32 x 27 x 8mm10. Product weight: 99g

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1. Hole 12mm2. Temperature resistance, long life3. Working current: 3A4. Working voltage: 125V5. Nut torque: M126. Operating stroke: 38mm7. Head protection: Level 408. Operation mode: Open type9. PBS-33B waterproof self-reset10. Contact structure: Normally open button11. Temperature range: -30-+85 degrees Celsius12. Product use: Rice cookers, hot water boilers, audio-visual products, digital products, remote controls, communication products, household appliances, security products, toys

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1. Audio channel: 2.1 channel2. Bluetooth version: 5.03. Audio input: Bluetooth+AUX+U disk+USB sound card4. Audio output: Passive speaker + 3.5mm interface stereo output5. Volume adjustment: Encoder knob adjustment, smooth feel6. Frequency range: 20Hz-30KHz7. Signal to noise ratio: 92dB8. Output power: 50W x 29. Adapted speaker: 10-200W /4/8 ohm10. Output filter: LC filter11. Protection mechanism: Static electricity, overvoltage, undervoltage, overheating, DC detection and short circuit protection12. Adapter power supply: DC 5-26V/5A above13. Function: Support Sinilink APP control14. Size: about 9.5 x 7 x 2.5cm15. Weight: about 130gPacking list:1. Upper cover2. Bare board3. Lower cover4. Knob cap x45. M2x4+3 copper pillar x 46. M2x3 screw x 87. M2x18 copper pillar x 48. DC adapter x 19. Heat sink x 110. Thermally conductive silicone paste x 1

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1. Bluetooth wireless technology standard configuration, strong and stable signal, support Bluetooth headset, Bluetooth speaker2. Support FM radio3. Support AVI format video playback, which can be watched anytime, anywhere4. Support OTG to connect to mobile phones or tablets, download files anytime, anywhere5. Under the condition of waking up, one key to start recording, press again to save the recording, support pause/continue recording in between6. Intelligent voice control recording, if there is a sound (more than 30 decibels), it will be recorded, and if there is no sound (or less than 30 decibels), it will be listened.7. Battery: polymer lithium battery, 300mAh8. Recording time: about 40 hours9. Playing time: about 30 hours10. Recording format: support MP3, WAV format11. Display screen: 1.5 inches, 128x160 pixels, TFT display, adjustable brightness and darkness12. Bluetooth module: Bluetooth 4.013. Headphone jack: 3.5mm14. USB interface: Micro USB15. Body material: zinc alloy, 3.5D high-strength glass mirror16. Product size: 88x41x9mm

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1. Bluetooth wireless technology standard configuration, strong and stable signal, support Bluetooth headset, Bluetooth speaker2. Support FM radio3. Support AVI format video playback, which can be watched anytime, anywhere4. Support OTG to connect to mobile phones or tablets, download files anytime, anywhere5. Under the condition of waking up, one key to start recording, press again to save the recording, support pause/continue recording in between6. Intelligent voice control recording, if there is a sound (more than 30 decibels), it will be recorded, and if there is no sound (or less than 30 decibels), it will be listened.7. Battery: polymer lithium battery, 300mAh8. Recording time: about 40 hours9. Playing time: about 30 hours10. Recording format: support MP3, WAV format11. Display screen: 1.5 inches, 128x160 pixels, TFT display, adjustable brightness and darkness12. Bluetooth module: Bluetooth 4.013. Headphone jack: 3.5mm14. USB interface: Micro USB15. Body material: zinc alloy, 3.5D high-strength glass mirror16. Product size: 88x41x9mm

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1. Automatic noise reduction recording, clear voice and noise reduction2. Intelligent voice control recording, if there is sound (more than 30 decibels), it will be recorded, and if there is no sound (or less than 30 decibels), it will be paused and saved.3. Recording files, encrypted and protected4. Built-in 120mAh rechargeable lithium battery, 24 hours continuous battery life5. Recording time: about 36 hours6. Charging time: about 30 minutes7. Sampling rate: 48KHz8. Number of bits: 192Kbps9. Product size: 32 x 27 x 8mm10. Product weight: 99g

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1. One key to start recording, easy to use2. Intelligent voice control recording, if there is sound (more than 30 decibels), it will record, and if there is no sound (or less than 30 decibels), it will be listened.3. You can add a password to the recording file, encrypt and protect your data security4. With its own delete function, unnecessary files can be deleted directly without computer operation5. Automatically save the file when the battery is low, and then shut down6. Small and portable, mirror design7. Charging time: about 10 hours8. Recording time: 25 consecutive days9. Built-in 4600mAh polymer lithium battery10. Recording format: WAV11. Music format: MP3, WMA, WAV12. Sampling rate: 48KHz13. Number of bits: 192Kbps14. Product size: 65 x 25 x 26mm

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1. One key to turn on, one key to turn off, press lightly to start recording2. After the voice-activated recording mode is turned on, it will automatically record only when there is sound, and it will automatically pause when there is no sound, which saves storage space.3. DSP digital noise reduction technology4. Automatically save when power off to prevent data loss5. Support power-on setting password to protect audio data6. Built-in high-sensitivity microphone, high-definition recording within 60 meters distance7. Only support Android phone OTG connection, you can play and manage files on the phone8. Sampling rate: 48KHz9. Number of bits: 192Kbps10. Battery: Built-in 120mAh lithium battery11. Recording format: WAV12. Recording time: 48 hours of continuous recording13. Standby time: 68 hours14. USB: DC to USB15. Material: zinc alloy polished16. Product size: 13.7 x 1.3cm17. Product weight: about 34g

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1. Can be used as a sound source to connect to Bluetooth headsets and speakers2. E-book portable e-book, multiple functions, just to give you a better reading experience3. It is also a radio, stable and reliable, not easy to disconnect, listen to popular broadcasts anytime, anywhere4. 360-degree wheel design, easy operation5. Equipped with AB repeat +/-8-level variable speed playback, a good partner for practicing oral English6. Small size, easy to carry7. Fully charged in 20 minutes, can be put continuously for 38 hours, charged for 5 minutes, can be played continuously for 6 hours8. Support OTG mobile phone interconnection9. Display: 1.2-inch OLED color display, resolution: 800*48010. Music format: MP3.WMA.WAV, APE, FLAC11. Bluetooth version: 4.212. EQ sound effects: normal, rock, funk, hiphop, jazz, classical, electronic music, custom13. Lyric format: LRC14. E-book: TXT, LRC15. FM radio: 87.5MHz-108MHz/76MHz-90MHz16. Recording format: MAV, MP317. Frequency range: 20Hz-20KHz18. Signal to noise ratio: greater than or equal to 90dB19. Battery capacity: 170mah20. Menu language: Simplified Chinese, Traditional Chinese, English, Korean, Japanese and other languages21. Size: 3.8x3.7x1cm

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1. Four-level battery display2. Working current: 5mA3. Working voltage: 3-34V4. Please be waterproof for outdoor use5. Working temperature: -20-50 degrees Celsius6. When the battery level is less than 25%, only the red frame is displayed7. S1-S8 optional pads can only be connected to one type, and 2 or more simultaneous short-circuiting are not allowed8. Lithium battery, lead acid, nickel metal hydride, battery can be used to display the battery, as long as the voltage is within the range of the parameter table9. Battery-type power display, select the corresponding solder pad to detect the voltage of the battery pack corresponding to 1S-8S, which is very convenient10. How to use: connect the positive and negative terminals of the display board to the positive and negative terminals of the battery under test, and the digital tube will display the real-time battery power

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1. You can record while writing, easy to use2. Intelligent noise reduction chip, long-distance unvoiced technology, high restoration of lossless original sound3. Built-in time chip, record file generation time and end time, accurate to the second, easy to organize, and improve credibility4. One-key recording, one-key saving, simple operation5. Can be clipped in pockets, bags, books, not easy to lose, easy to carry6. After the voice control recording mode is turned on, it will automatically record only when there is sound, and automatically pause when there is no sound.7. Support power-on setting password, intimate protection of audio data8. You can directly delete unnecessary recording files on this machine, which is convenient for sorting out documents9. Support replacement of refills10. When the battery is low, the recording will save the file in advance, and then turn it off for 1 hour to fully charge it, and continue to record for 38 hours11. Battery capacity: 120mah12. Length: 142mm

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1. Aluminum alloy material, 5D glass glossy surface, exquisite appearance2. One-key recording, switch between the two modes at will3. Built-in noise reduction chip, bring you higher fidelity and clearer recording sound quality and playback4. Connect to a computer to synchronize Beijing time, which is convenient for recording file generation time and ending time, and is convenient for browsing and searching files5. When the system detects that the battery is insufficient, the recorder will save the file in advance and then automatically shut down to ensure that the recording data is not lost6. Large-capacity U disk storage function, no need to worry about recording storage space7. Interface: Type-C8. Battery capacity: 110mah9. Playing time: about 20 hours10. Recording time: about 40 hours11. Charging time: about 1 hour12. Size: 4.19x3.9x1cm13. Weight: about 29.1g

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1. Small size, easy to carry2. One-key recording, one-key saving, simple operation3. The internal microphone is an indefinite capacitor MIC, and the speaker playback system is Dynamic 2014mm, which brings you clear sound quality and playback.4. The recording effect of this product, the sound quality is relatively clear, the parameters are high, and it can achieve good results, so the file is large, please extract and save the recording file in time5. Applicable scenarios: study, meeting, interview, etc.6. Battery capacity: 90mah7. Size: 45x17x5mm

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1. Small size, easy to carry2. One-key recording, one-key saving, simple operation3. The internal microphone is an indefinite capacitor MIC, and the speaker playback system is Dynamic 2014mm, which brings you clear sound quality and playback.4. The recording effect of this product, the sound quality is relatively clear, the parameters are high, and it can achieve good results, so the file is large, please extract and save the recording file in time5. Applicable scenarios: study, meeting, interview, etc.6. Battery capacity: 90mah7. Size: 45x17x5mm

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1. Small size, easy to carry2. One-key recording, one-key saving, simple operation3. The internal microphone is an indefinite capacitor MIC, and the speaker playback system is Dynamic 2014mm, which brings you clear sound quality and playback.4. The recording effect of this product, the sound quality is relatively clear, the parameters are high, and it can achieve good results, so the file is large, please extract and save the recording file in time5. Applicable scenarios: study, meeting, interview, etc.6. Battery capacity: 90mah7. Size: 45x17x5mm

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1. Four-level battery display2. Working current: 5mA3. Working voltage: 3-34V4. Please be waterproof for outdoor use5. Working temperature: -20-50 degrees Celsius6. When the battery level is less than 25%, only the red frame is displayed7. S1-S8 optional pads can only be connected to one type, and 2 or more simultaneous short-circuiting are not allowed8. Lithium battery, lead acid, nickel metal hydride, battery can be used to display the battery, as long as the voltage is within the range of the parameter table9. Battery-type power display, select the corresponding solder pad to detect the voltage of the battery pack corresponding to 1S-8S, which is very convenient10. How to use: connect the positive and negative terminals of the display board to the positive and negative terminals of the battery under test, and the digital tube will display the real-time battery power

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1. Aluminum alloy material, 5D glass glossy surface, exquisite appearance2. One-key recording, switch between the two modes at will3. Built-in noise reduction chip, bring you higher fidelity and clearer recording sound quality and playback4. Connect to a computer to synchronize Beijing time, which is convenient for recording file generation time and ending time, and is convenient for browsing and searching files5. When the system detects that the battery is insufficient, the recorder will save the file in advance and then automatically shut down to ensure that the recording data is not lost6. Large-capacity U disk storage function, no need to worry about recording storage space7. Interface: Type-C8. Battery capacity: 110mah9. Playing time: about 20 hours10. Recording time: about 40 hours11. Charging time: about 1 hour12. Size: 4.19x3.9x1cm13. Weight: about 29.1g

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1. 1080P ultra-definition video, large wide-angle lens, wide field of view, increase the visual range2. Hangable back clip design, can hold pockets, school bags, folders, etc.3. Connect to a computer to synchronize Beijing time, which is convenient for recording file generation time and end time, and is convenient for browsing and searching files4. 30 days standby, 180 minutes of recording time5. You can watch while recording, watch online in real time, easy to use6. The file can be set to be encrypted and saved, and it cannot be opened without a password, making it more secure to use7. When the system detects that the battery is low, the recorder will save the file in advance and then automatically shut down to ensure that the recording data is not lost8. After the memory is full, the new video file will automatically overwrite the old video file9. Video format: AVI10. Video resolution: 1920*1080 30fps11. Recording time: about 210 minutes12. Charging time: about 3 hours13. Interface: Type-C14. Size: 46x46x16.5mm15. Weight: about 31g16. Battery capacity: 110mah

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1. 1080P ultra-definition video, large wide-angle lens, wide field of view, increase the visual range2. Hangable back clip design, can hold pockets, school bags, folders, etc.3. Connect to a computer to synchronize Beijing time, which is convenient for recording file generation time and end time, and is convenient for browsing and searching files4. 30 days standby, 180 minutes of recording time5. You can watch while recording, watch online in real time, easy to use6. The file can be set to be encrypted and saved, and it cannot be opened without a password, making it more secure to use7. When the system detects that the battery is low, the recorder will save the file in advance and then automatically shut down to ensure that the recording data is not lost8. After the memory is full, the new video file will automatically overwrite the old video file9. Video format: AVI10. Video resolution: 1920*1080 30fps11. Recording time: about 210 minutes12. Charging time: about 3 hours13. Interface: Type-C14. Size: 46x46x16.5mm15. Weight: about 31g16. Battery capacity: 110mah

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Features:1. Extensive testing of AC/DC voltage, AC/DC current, resistance, continuity, capacitance, frequency and temperature; test diodes.2. The large LCD backlit screen and low battery indicator make it easier to read and record measurements.3. It can meet the needs of long hours of work, from a durable appearance to a wide range of heavy-duty functions.4. The fuse can effectively protect the multimeter; overload protection in all ranges.5. Whether the job is a quick DIY continuity check or a complex problem, the durable design and consistent readings are suitable for long hours of work on site or repair in the garage.Parameter:1. DC voltage: 6V/60V/600V/800V +/- (0.5%+3)2. AC voltage: 6V/60V/600V +/- (0.8%+3)3. DC current range: 6A/10A +/- (2.0%+30)4. AC current range: 6A/10A +/- (2.0%+30)5. Resistance: 600 ohm/60k ohm/6M ohm/60M ohm +/- (0.8%+5)6. Capacitance: 99.99nF/999.9nF/9.999uF/99.99uF/999.9uF +/-(3.5%+20)7. Capacitance: 5.999mF +/-(5%+3)8. Automatic shutdown: 15 minutes9. Input resistance: greater than or equal to 10M ohm10. Display (max): 599911. Test speed: 3 times/minute12. Power supply: 2 AAA batteries (not included)13. LCD screen size: About 49x30mm14. Product size: 142x70x32mmPacking list: Multimeter x 1, meter lead x 2, temperature cable x 1, manual x 1, color box x 1

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1. Material: aluminum alloy2. Fixed vent design3. Hollow design, fast heat dissipation4. Strong and durable, not easy to rust5. The hole position corresponds to the motherboard interface one by one6. Low density, strong corrosion resistance, high strength7. For Raspberry Pi 3 Model B Pi 2/B +8. Does not affect the WIFI signal, the side slot can be installed GPIO cable9. USB, network port, audio, micro HDMI and power interface access

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1. Material: aluminum alloy2. Fixed vent design3. Hollow design, fast heat dissipation4. Strong and durable, not easy to rust5. The hole position corresponds to the motherboard interface one by one6. Low density, strong corrosion resistance, high strength7. For Raspberry Pi 3 Model B Pi 2/B +8. Does not affect the WIFI signal, the side slot can be installed GPIO cable9. USB, network port, audio, micro HDMI and power interface access

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1. Material: ABS2. Wire material: PVC/Brass3. DC voltage: 200mV-2V-20V-200V-1000V4. AC voltage: 200mV-2V-20V-200V-750V5. DC current: 20mA-200mA-20A6. Alternating current: 2m-20m-200m-20A7. Resistance measurement: 200-2k-20k-200k-2M-20MΩ-200 milliohms8. Capacitance measurement: 20nF-200nF-2uF-200uF9. Power measurement: Need to receive (mA) socket measurement10. 3 1/2 LCD display: 1999 count11. Automatic shutdown function: about 15 minutes later12. Drive power: 6F22 9V battery (not included)13. Complete anti-burn design14. Large angle display, easy to read15. PVC shockproof sleeve, double fuses, safe and reliable16. Cable length: 70 cm17. Dimensions: 180x90x35 mm18. Weight: 158.6 gramsPacking list- Digital multimeter x 1- Test lead x 1- User manual x 1

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1. Material: ABS2. Power supply: 2 AAA batteries (not included)3. Alternating current: 6A, 60A/400A, 400A~600A4. DC voltage: 6V/60V, 500V,5. AC voltage: 6V/60V, 450V6. Frequency: 99.99Hz/999.9Hz/9.999kHz, 99.99kHz/999.9kHz/9.999mHz7. Capacitance: 9.999nF, 99.99nF/999.9nF/9.999uF/99.99uF/999.9uF, 9.999mF, 99.99mF8. Jaw diameter: 35.4 mm9. With flashlight lighting and LED backlight display10. Automatic shutdown after 15 minutes of no operation11. Dimensions: 65x33.2x184.8 mm12. Weight: 123.5 gramsThe standard package includes:1. Multimeter x 12. Test lead x 13. Manual x 1

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1. You can record while writing, easy to use2. Intelligent noise reduction chip, long-distance unvoiced technology, high restoration of lossless original sound3. Built-in time chip, record file generation time and end time, accurate to the second, easy to organize, and improve credibility4. One-key recording, one-key saving, simple operation5. Can be clipped in pockets, bags, books, not easy to lose, easy to carry6. After the voice control recording mode is turned on, it will automatically record only when there is sound, and automatically pause when there is no sound.7. Support power-on setting password, intimate protection of audio data8. You can directly delete unnecessary recording files on this machine, which is convenient for sorting out documents9. Support replacement of refills10. When the battery is low, the recording will save the file in advance, and then turn it off for 1 hour to fully charge it, and continue to record for 38 hours11. Battery capacity: 120mah12. Length: 142mm

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1. Aluminum alloy material, 5D glass glossy surface, exquisite appearance2. One-key recording, switch between the two modes at will3. Built-in noise reduction chip, bring you higher fidelity and clearer recording sound quality and playback4. Connect to a computer to synchronize Beijing time, which is convenient for recording file generation time and ending time, and is convenient for browsing and searching files5. When the system detects that the battery is insufficient, the recorder will save the file in advance and then automatically shut down to ensure that the recording data is not lost6. Large-capacity U disk storage function, no need to worry about recording storage space7. Interface: Type-C8. Battery capacity: 110mah9. Playing time: about 20 hours10. Recording time: about 40 hours11. Charging time: about 1 hour12. Size: 4.19x3.9x1cm13. Weight: about 29.1g

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1. 1080P ultra-definition video, large wide-angle lens, wide field of view, increase the visual range2. Hangable back clip design, can hold pockets, school bags, folders, etc.3. Connect to a computer to synchronize Beijing time, which is convenient for recording file generation time and end time, and is convenient for browsing and searching files4. 30 days standby, 180 minutes of recording time5. You can watch while recording, watch online in real time, easy to use6. The file can be set to be encrypted and saved, and it cannot be opened without a password, making it more secure to use7. When the system detects that the battery is low, the recorder will save the file in advance and then automatically shut down to ensure that the recording data is not lost8. After the memory is full, the new video file will automatically overwrite the old video file9. Video format: AVI10. Video resolution: 1920*1080 30fps11. Recording time: about 210 minutes12. Charging time: about 3 hours13. Interface: Type-C14. Size: 46x46x16.5mm15. Weight: about 31g16. Battery capacity: 110mah

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1. Free to install the driver, no need to connect to the Internet, plug and play, the meeting is more efficient 2. Dual mode, more flexible meeting: projection mode, extended mode 3. One-click disconnect/reconnect 4. Support multiple transmitter connections, one-key switch signal, no mutual interference, flexible and fast 5. Support 4K HD picture quality, simultaneous audio and video transmission 6. The mobile phone is on the same screen, wireless connection, no complicated operation is required, the mobile phone can easily connect to the big screen through the wireless signal 7. High-gain dual antennas, stronger signal, support 2.4G+5G transmission at the same time, high-speed stability without frame drop 8. Support VGA/HDMI dual interface to connect projectors/monitors/TVs and other large-screen devices to meet the needs of different users 9. Power supply: 5V/2A 10. Material: aluminum alloy + ABS

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1. Material: ABS 2. Auto range: 1999 3. Clamp-shaped opening size: 60 mm 4. DC voltage: 266X 1-1000V 5. AC voltage: 266X 200V-750V 6. Alternating current: 20m-1000A; 200A-1000A 7. Resistance: 20 ohm-2000 milliohm 8. Power supply: 6F22 9V (not included) 9. Dimensions: 193x40.8x227.5 mm 10. Weight: 187 grams Packing list: 1. Multimeter x 1 2. Test lead wire x 1 3. Manual x 1 4. Storage bag x 1 5. Lanyard x 1

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Specification:1. Battery type: 6F22 9V (not included)2. Continuous voltage: 200m V--2-20-200-600V3. AC voltage: 200V-600V4. DC current: 200u-2m-20m-200m-10A5. Electronic resistance: 200-2k-20k-200k-2M ohm6. Transistor measurement: Yes (PNP/pn transistor hFE)7. Input resistance: 1 milliohm8. Display: 1999 (3 and a half liquid crystal display)9. Display size: 45×20mm10. Digital LCD screen, the display value is 1999 (MAX)11. The total length of the line: 60 cm12. Overall dimensions: 135x67x33 mm13. Weight: 125 gramsFeatures:1. With industrial-grade silicone protective cover, effectively prevent falling2. Screen backlight design, the measuring resin can be seen clearly in the dark3. Adjustable extension bracket design with back strap4. The socket is smoothly tightened, and the printing position on the panel is accurate5. Function range dial, 20 gearsBubble bag packing list:- Digital LCD multimeter x 1- Test lead x 1- Manual x 1- Bubble bag x 1Standard +10A extra tip pen packing list:- Digital LCD multimeter x 1- Test lead x 1- Manual x 1- 10A extra tip test pen x 1- Color box packaging x 1

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1. Material: ABS2. Power supply: 2xAAA (not included)3. DC voltage: 400mV / 4V / 40V / 400V / 600V4. AC voltage: 4V / 40V / 400V / 600V5. Resistance: (OMH) 400 / 4K / 40K / 400k / 4m / 40m6. Diode: 4V7. Buzzer on and off: 400 (OMH)8. DC current: 40mA / 200mA9. Alternating current: 40mA / 200mA10. Capacitance: 4NF / 40nf / 400nf / 4uf / 40uf / 400uf / 4mf11. Value: 4000 (MAX)12. Dimensions: 225.4x46.3x8.7 mm13. Weight: 67 grams

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1. Imaging unit: LCD 2. Resolution: 320*240 3. Brightness: 400 lumens 4. Type of light source: LED 5. Languages: 23 kinds 6. Image size: 60-400 inches 7. Projection ratio: 4:3 /16:9 8. Contrast ratio: 800:1 9. Overall power: 10w-24w 10. Input interface: USB/HDMI/AV 11. Interface output: headphone 12. Input voltage: 12V-1.5A 13. Function: U disk can be read, wired mobile phone on the same screen + wireless mobile phone on the same screen + wireless mobile phone push function 14. Size: 114x91x51mm 15. Weight: about 0.5kg 16. Packing list: projector + power cord + remote control + manual

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1. Power: less than 1.5W2. Temperature sensor: NTC3950, 10K3. Temperature error: +/-1 degrees Celsius4. Power consumption: less than 1.5W5. Current load: 3A6. Voltage: AC 95-240V 50-60Hz7. Ambient temperature: 0-45 degrees Celsius8. Temperature range: 5-45 degrees Celsius9. Environmental humidity: relative humidity 5-95% (non-condensing)10. Protection level: IP2011. Installation box: European 60mm round box12. Size: 131x75x37.5mmFeatures:1. Suitable for electric heating, pipes and wall hanging2. Applicable system: the floor heating thermostat supports the application system of IOS and Andriod system3. The thermostat can be controlled by mobile phone anytime and anywhere. When you connect the thermostat with the mobile phone, the thermostat will display the local weather, habits and humidity, and check the current status through the app4. PC+ABS flame retardant shell, safe to use5. LCD display, 2.5D arc chamfer +13mm ultra-thin embedded panel, suitable for various wall spaces6. Store data when power is off, no need to worry about power off7. 7 programmable 5+1+1 periods, which can improve comfort and energy-saving strategies, and adapt your home heating to your life8. Through Bluetooth compatibility, quickly connect to the mobile phone, the operation steps are simple; you can perform voice control of smart home integration and heating. Just give voice commands to turn the thermostat on and off, and even set it to a specific temperature as needed9. Support local data package/sharing, centralized control10. App remote control, send you the current indoor temperature information, no matter where you are and how far you go, you can freely control the indoor temperature11. More functions: manual mode in programming mode, temperature calibration, child lock, antifreeze function, high temperature protection, start temperature difference, etc.

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1. 1080P ultra-definition video, large wide-angle lens, wide field of view, increase the visual range2. Hangable back clip design, can hold pockets, school bags, folders, etc.3. Connect to a computer to synchronize Beijing time, which is convenient for recording file generation time and end time, and is convenient for browsing and searching files4. 30 days standby, 180 minutes of recording time5. You can watch while recording, watch online in real time, easy to use6. The file can be set to be encrypted and saved, and it cannot be opened without a password, making it more secure to use7. When the system detects that the battery is low, the recorder will save the file in advance and then automatically shut down to ensure that the recording data is not lost8. After the memory is full, the new video file will automatically overwrite the old video file9. Video format: AVI10. Video resolution: 1920*1080 30fps11. Recording time: about 210 minutes12. Charging time: about 3 hours13. Interface: Type-C14. Size: 46x46x16.5mm15. Weight: about 31g16. Battery capacity: 110mah

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1. 1080P ultra-definition video, large wide-angle lens, wide field of view, increase the visual range2. Hangable back clip design, can hold pockets, school bags, folders, etc.3. Connect to a computer to synchronize Beijing time, which is convenient for recording file generation time and end time, and is convenient for browsing and searching files4. 30 days standby, 180 minutes of recording time5. You can watch while recording, watch online in real time, easy to use6. The file can be set to be encrypted and saved, and it cannot be opened without a password, making it more secure to use7. When the system detects that the battery is low, the recorder will save the file in advance and then automatically shut down to ensure that the recording data is not lost8. After the memory is full, the new video file will automatically overwrite the old video file9. Video format: AVI10. Video resolution: 1920*1080 30fps11. Recording time: about 210 minutes12. Charging time: about 3 hours13. Interface: Type-C14. Size: 46x46x16.5mm15. Weight: about 31g16. Battery capacity: 110mah

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