1. One key to start recording, easy to use 2. 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 heard. 3. You can add a password to the recording file, encrypt and protect your data security 4. With its own delete function, unnecessary files can be deleted directly without computer operation 5. Automatically save the file when the battery is low and then turned off 6. Small and portable, mirror design 7. Charging time: about 10 hours 8. Recording time: 25 consecutive days 9. Polymer lithium battery Built-in 4600mAh 10. Recording format: WAV 11. Music format: MP3, WMA, WAV 12. Sampling rate: 48khz 13. Number of bits: 192Kbps 14. Product size: 65 x 25 x 26mm