Features - Color: Black. - Material: zinc alloy. - Size: 8.5x2.6x1.1cm/3.3x1x0.4inch - Timestamp,Name the recording files by date automatically, easy to find the file you need. - Timer Recording and turn on at your set time automatically - AGC function, adjusts the noise source - Support loop recording, A-B segment repeat function, checking the remaining recording time, VOR voice activated mode, voice recording and monitoring recording, convenient to use - Setting up with password to protect the files, keep your audio files safe. - Detect low battery and save recording files automatically Specification Recording Format: WAV/MP3 Music Playback Format: WMA/WAV/MP3/OGG etc. audio format Recording Time: About 35 hours Playing Time: About 21 hours Battery: 410mAh LCD Resolution: 96x64 Interface: USB 2.0 Built-in Speaker: 18MMx26MM 8 Omega/1W Working Temperature: 0 to 40 degree Recording Sample Rate: 48KHZ Headphone Jack: 3.5mm, dual track Noise-signal ratio: 80db