Q90 Intelligent HD Digital Noise Reduction Recording Pen, Capacity:4GB(Black)

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