Product Features: 1. Using one-piece shell, anti-fall strongly2. Timestamp, Name the recording files by date automatically.Detect low battery and save recording files automatically before power off3. Monitor the recording in real time/Hearing aid fuction4. Work as voice Recorder, MP3, and USB drive.One key to record key to save audio.5. Play function: wire USB adapter, Previous/ File button.Support voice activated mode.Without speakers, no soundSpecification: 1. Recording Format: WAV2. Music Playback Format: WMA/FLAC/MP3/APE/OGG etc. 3. Battery Recording Time: About 20 hours4. Battery Charging time: 1Hours, Player : 15hours5. Capacity: 16G6. Recording : Voice Recording8. RecordingQuality: 384kbps, 192kbps, 128kbps, 64kbps, 32kbps9. USB Interface 2.010. Working Temperature: 0 to 45 degree11. Headphone Jack: 3.5mm, dual track12. Noise-signal Ratio: 80db13. Compatible System: Windows 2000&above14. Use for: Daily, Meeting, Training, StudyMaterial: ABScolour: blackPackage Contents: 1 x Host1 x Eardphones1 x Data Cable1 x English ManualOnly 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.