Cutting edge wireless technology helps meet No Child Left Behind requirements. 3 Watt RMS 3432IR Cassette Player/Recorder for up to 50 people. 15 foot Infrared range enables any number of headphones to listen without cumbersome cables. Four 34IR headphones with on/off switch, power LED and individual volume control. Play, pause and tone controls, cue & review, 2X counter, all metal tape transport with full auto stop, AC/DC operation, built-in electric mic with auto logic control monitors. Durable, foam-lined 2001 Carry Case. Weight 18 lbs.