RF headset for Sennheiser TV listening systems Headphones ONLY Does NOT include base transmitter 2 year warranty Options available: RS120 ($99.95) (pictured above) Crystal-clear reception from the Open-Aire on-the-ear Hi-Fi wireless stereo headphones Detailed, analytical sound reproduction with strong bass response Perfectly suited for all types of modern music & TV applications Receives reception through walls, ceilings & outdoors Control elements conveniently positioned to provide easy, intuitive operation Convenient on-cradle battery charging Lightweight headphones, extremely comfortable to wear Replaceable, on-the-ear fabric-covered ear cushions Range of up to 328 ft. 3 selectable RF channels RS160 ($109.95) KLEER wireless technology Up to 60' range Automatic, interference-free pairing Neodymium drivers Around-ear design Leatherette ear cushions Battery or AC power Digital volume control with mute