A sleek and intuitive rechargeable voice recorder with touch button display and a generous 4GB of memory. Quick one-key recording means you won't miss an important part of a speech or radio broadcast. It features two recording modes; pulse-code modulation (PCM) and high quality (HQ) for capturing up to 69 hours of high quality audio. You can also set it to VOR (voice operated recording) and let the device record whatever it hears. A solid voice recorder ideal for students, journalists, musicians, private investigators, and business people. Includes earphones, tie clasp microphone and USB cable. Voice Activated Recording FM Radio Recording MP3 Player Touch Button Display Low Battery Auto File Save One Button Recording In-built Stereo Microphone Memory: 4GB Internal Recording Modes: PCM, HQ Recording Format: WAV (PCM), MP3 (HQ) Recording Time: 12hrs PCM, 69hrs HQ Battery: 3.7V, 350mAh Li-Ion Rechargeable Battery Confirmed Compatible Operating Systems : Windows 10, Windows 8, Windows 7, Windows Vista, Windows XP, Windows 2000, Mac OSX 10 Cheetah Width : 36.0mm Height : 100.0mm Depth : 9.0mm Battery runtime : 16.0hr Mains charging charge time : 3.0hr