Product Features: 1. Using one-piece shell, anti-fall strongly 2. Timestamp, Name the recording files by date automatically.Detect low battery and save recording files automatically before power off 3. Monitor the recording in real time/Hearing aid fuction 4. Work as voice Recorder, MP3, and USB drive.One key to record and one key to save audio. 5. Play function: wire USB adapter, Previous/Next File button.Support voice activated mode.Without speakers, no sound Specification: 1. Recording Format: WAV 2. Music Playback Format: WMA/FLAC/MP3/APE/OGG etc. 3. Battery Recording Time: About 20 hours 4. Battery Charging time: 1Hours, Player : 15hours 5. Capacity: 16G 6. Recording : Voice Recording 8. RecordingQuality: 384kbps, 192kbps, 128kbps, 64kbps, 32kbps 9. USB Interface 2.0 10. Working Temperature: 0 to 45 degree 11. Headphone Jack: 3.5mm, dual track 12. Noise-signal Ratio: 80db 13. Compatible System: Windows 2000&above 14. Use for: Daily, Meeting, Training, Study Material: ABS colour: black Package Contents: 1 x Host 1 x Eardphones 1 x Data Cable 1 x English Manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.