Q4 Cross Pattern AI Intelligent High-definition Noise Reduction Voice Control U Disk Recorder MP3 Player, Capacity:4GB 1. High-definition noise reduction technology, guaranteed sampling rate, layered noise filtering, output original and clear human voice 2. 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. 3. Not only a voice recorder, but also a USB flash drive, MP3, multi-functional use, and can also be used as a necklace decoration 4. Integrated recording encryption technology, even if it is held in someone else’s hand, it cannot be read and copied. 5. Built-in clock chip, after synchronizing the time with the computer, the recording file is named after the time 6. Change between the two modes at will 7. Connecting OTG to an Android phone, you can easily realize the playback and storage of recording files 8. Recording time: about 20 hours 9. Standby time: about 30 days 10. Sampling rate: 48KHz 11. Recording bit rate: 192KBPS 12. 4GB can be stored for 48 hours, 8GB can be stored for 96 hours, 16GB can be stored for 192 hours, 32GB can be stored for 384 hours 13. Size: 44x9.5mm 14. Weight: 8.9g