The RS160 has a simple round base station included that will take your TV audio signal input via a 1/8' [3.5mm] mini-plug cable (provided), and will run either on two AA batteries for portable operation, OR can be powered by the included multi-country AC wall adapter. The RS 160 base station includes an input sensitivity control to prevent clipping from an overly loud or high-level external source, and the headphones provide a volume control and mute switch mounted on one earcup for listening convenience. The Sennheiser HDR-160 headphones included are a 'sealed-back' earcup construction so they will provide some isolation from outside noises as you enjoy your TV, movies, or music in peace; the seal also prevents sound leakage from the headphones so that the person next to you on the sofa or in bed won't have to endure your audio. Each earpiece accepts one  rechargeable AAA battery (included) and the 'phones will run for about 24 hours. Recharge time is 16 hours from completely empty to full. They will transmit up to 60ft+ on 2.4-2.8gHz as the system 'auto-selects' the clearest possible wireless channel. Run-time is about 24 hours per full charge.
Whats In The Box: