The LA-141 ListenIR Expansion Radiator from Listen Technologies is designed to be used with the company's LT-84 ListenIR Transmitter/Radiator Combo. Up to four Expansion Radiators can be daisy chained to each LT-84 system for additional coverage. The LA-141 and the LT-84 combination are compatible with the LR-4200-IR and LR-5200-IR receivers for coverage of up to 30,000 ft², or with the LR-42 and LR-44 receivers in single channel mode for coverage of up to 7,500 ft². A single Cat 5e cable carries both power and signal to the radiator for a simple one-cable connection. Placing additional Expansion Radiators in the same space can increase your coverage area and freedom of movement. The LA-141 includes mounting hardware for mounting to the wall, ceiling, or table.