Sennheiser Set IS410 $195.00 Description: Cordless infrared TV listening system with crystal clear Sennheiser quality Receives up to 40 feet within line of site of the transmitter Balance control for easy volume adjustment between ears Automatic on/off feature Lightweight headset for exceptional comfort Operates on 2.3/2.8 MHz frequency Rechargeable lithium ion battery (BA300) lasts more than 16 hours on a single charge