Super Light Smart Audio Voice Recorder 32GB 64GB HD Long Battery Noise Reduction Dictaphone Rechargeable Keychain for Meeting Product Features: 1. Shell made from metal and zinc alloy material, anti-fall strongly<br> 2. Professional recording pen chip of ATJ3315D, HD recording<br> 3. Timestamp,Name the recording files by date automatically<br> 4. AGC function, adjusts the noise source automatically<br> 5. Voice Recorder,MP3 player,and USB flash drive<br> 6. Support voice activated recording<br> 7. Detect low battery and save the recording files automatically<br> 8. Playback function: One key to record/save<br> 9. Plug into headphones to listen to music<br> 10. USB adapter<br> 11. Long battery life<br> 12. Built in rechargeable 150mAh lithium battery<br> 13. USB 2.0 connector , easy to upload and download files<br> 14. Color: Black/Silver Specification: 1. Recording Format: WAV/192kpbs<br> 2. Music Playback Format: WMA/WAV/MP3/OGG etc. audio format<br> 3. Battery Recording Time: About 15 hours<br> 4. Battery Playing Time: About 10 hours<br> 5. Battery: 150mAh lithium battery Battery charging time: About 2 hours<br> 6. Noise-signal ratio: 80db<br> 7. USB Interface: USB 2.0 High Speed<br> 8. 16GB Saving recording time: About 188H/ 32GB saving recording time: About 376H<br> 9. Working Temperature: -5 to 40 degrees<br> 10. Recording Sample Rate: 48KHZ<br> 11. Headphone Jack: USB jack<br> 12. Compatible System: Windows 2000&amp;above<br> 13. Size(mm): 70*23*8 (L*W*T)<br> 14. Net Weight: About 34g