Sony M-800V Microcassette Voice Recorder Selectable Auto-Reverse recording and playback so you don't have to change tape sides Uses 2 AA batteries and MC60 microcassette tapes (optional) VOR Voice Operated Recording activates the recorder only when audible sound is present, conserving tape and eliminating soundless passages Operates about 10 hours on set of alkaline batteries 1-Touch quick Play/Record operation