Record up to 270 hours of voice, notes or music in long play or short play with either manual or voice-activated recording. You can either play back through headphones or use the included software to play, save or edit the audio files on your PC. An LCD screen keeps track of everything you record and it can also be used as an MP3 player. * USB cable, earphone, external MIC * External mic input * Requires 2 x AAA batteries * LP and SP recording modes * Compatibility: Windows 8.1, 8, 7, Vista, XP, 2000, Mac OS X® 10.4+, Linux * Dimensions: 111(L) x 28(W) x 14(H)mm