Complaint
1. One key recording and one key saving.
2. Time stamp function. The recording file is named after the recording time.
3. Working time: continuous recording lasts about 9 hours and continuous playback lasts about 5 hours
4. Recording format: wav
5. Music format: MP3 / WAV / wma
6. 4GB continuous recording lasts about 44 hours
7. Sampling rate: 48Khz
8. Bit rate: 32kbps-192kbps
9. Body size: About 60mm * 21mm * 9.5mm
