The HB79 Infrared (line of sight) Stereophone system consists of a single channel wireless stereophone and a compact infrared transmitter. Incorporating infrared technology, the HB79 is ideal for home audio, video and computer use. The transmitter connects to most home systems through a 3.5mm headphone jack or audio output. Utilizing infrared (IR) technology, it transmits an invisible, infrared signal to the headphone which then reproduces the audio signal. Unlike conventional wireless systems the HB79 is relatively small and lightweight for extended listening periods. The HB79 stereophone contains a dynamic element for extended frequency response. The adjustable, soft rubber headband provides maximum comfort and customization to any user. A volume control is placed on the earcup for convenient level adjustment. Foam cushions rest on the ear and provide an open, airy sound that allows the user to stay in touch with their environment.