Sharper Image Premium Wireless Over Ear Headphones • In addition to TVs, this device can be used with virtually any other audio source (radio, stereo, MP3 player, etc.) • 160-ft. wireless range (unobstructed) • Operates approximately 20 hours on a full charge • Comfortable padded design • Simple “top charging” cradle make charging foolproof • Connects to TV in one of three different ways: • Headphone Jack — When using the included 3.5mm audio cable you will only be able to hear audio through the headphones. The internal TV speakers will not function while the 3.5mm audio cable is plugged in. • Audio Out — Use the included RCA to 3.5mm adapter. Connect the audio out cable directly to the TV (not to the cable box) to ensure all sources can be heard. When the audio out cable is connected to the TV all audio sources will work including the cable box. • Fiber Optic Cable — If your TV has digital audio output (also called "optical audio” or “TOSLINK”), use the included fiber optic cable.