Olympus DM-10 Digital Voice Recorder and Music Player Voice recorder and music recorder/player all in one; stereo recording and playback supports DSS, MP3, and WMA file formats 64 MB built-in internal memory for 22 hours of voice recording or 1 hour of near-CD-quality music; offers voice activation, index marking, backlit LCD Manage your voice files in 5 folders and music files in 2 folders capable of storing up to 199 files each USB docking station grants quick, easy uploads and downloads; PC and Macintosh compatible; comes with stereo ear bud headphones Noise Cancellation mode reduces ambient sound; WOW audio technology provides rich bass and 3-dimensional sound during music playback