Williams Sound PPA T35 Personal PA FM Base-Station Stationary Transmitter

Williams Sound WIR TX9 Multi-Channel Infrared Transmitter

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

Williams Sound MOD 232 R Infrared Modulator Two Channel Microprocessor

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

Williams Sound personal PA/FM Transmitter Model PPA T4