Califone® Wireless Infrared Stereo Computer Headphone Set

Designed for use with classroom-based computer programs and ideal for reading and language development. The detachable USB transmitter connects to a computer’s USB port and transmits wireless stereo from as far away as 20 ft. There is no limit to the number of listeners so long as they are within the 20-ft. transmission range with a clear line of sight between the headphone and transmitter. Headphones feature adjustable headbands with ambient noise-reducing earcups. Set includes four infrared headphones and a USB transmitter with 10 in. USB extender. Headphones require two AAA batteries (included) and feature automatic sleep mode.