1. You can record when writing, easy to use 2. Intelligent noise reduction chip, unparalleled long-distance technology, high restoration of the original sound without loss 3. Built-in timing chip, record file generation time and end time, accurate to the second, easy to organize and improve credibility 4. One-key recording, one-key saving, simple operation 5. Can be clipped into pockets, bags, books, not easy to lose, easy to carry 6. After mode 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 setting password, intimate protection of audio data 8. You can directly delete unnecessary recording files on this machine, which is convenient for classifying documents 9. Support replacement refills 10. When the battery is low, recording will save the file in advance, and then shut down for 1 hour to fully charge and continue recording for 38 hours 11. Battery capacity: 120mAh 12. Length: 142mm