These are the 100' range wireless TV headphones that clarify and boost the sound of dialog without increasing background volume. The included 5.8 GHz digital transmitter plugs into a television with the included cables (3.5mm, RCA, RCA Coaxial, and Optical) and transmits audio to the headphones without using Bluetooth, Wi-Fi, or smartphone apps. The headphones have advanced technology that isolates voice frequencies, lifting dialog audio without increasing a movie or program’s background noise or music. The headphones’ earcups and top are padded for plush comfort and have built-in controls that adjust volume, activate theater sound, and turn the voice clarifying feature on/off. Headphones are powered by two rechargeable AAA batteries (included). Transmitter plugs into AC with included adapter.