Williams Sound WIR TX9 Multi-Channel Infrared Transmitter

Williams Sound WIR TX9 Infrared Emitter / Audio Transmitter ( no power supply)

Williams Sound WIR TX9 Infrared Emitter | Audio Transmitter for Assistive Listen

Williams Sound TX8 Multi-Channel Infrared Transmitter

Williams Sound MOD 232 Two Channel Infrared System Modulator w/ power supply