Professional recording pen chip of ATJ3315D, HD recording<br> Timestamp,Name the recording files by date automatically<br> AGC function, adjusts the noise source automatically<br> Voice Recorder,MP3 player,and USB flash drive<br> Support voice activated recording<br> Detect low battery and save the recording files automatically<br> Playback function: One key to record/save<br> Plug into headphones to listen to music<br> USB adapter<br> Long battery life<br> Built in rechargeable 150mAh lithium battery<br> USB 2.0 connector , easy to upload and download files<br> Recording Format: WAV/192kpbs<br> Music Playback Format: WMA/WAV/MP3/OGG etc. audio format<br> Battery Recording Time: About 15 hours<br> Battery Playing Time: About 10 hours<br> Battery: 150mAh lithium battery Battery charging time: About 2 hours<br> Noise-signal ratio: 80db<br> USB Interface: USB 2.0 High Speed<br> 16GB Saving recording time: About 188H<br> Working Temperature: -5 to 40 degrees<br> Recording Sample Rate: 48KHZ<br> Headphone Jack: USB jack<br> Compatible System: 2000&above<br> Colour:A: Black<br> Material:plastic<br> Package Contents:<br> 1 x Mini Recorder<br> Only the above package content, other products are not included.<br> 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.