Listen Technologies LS-91-01 - ListenIR iDSP Level II SystemThe LS 91 ListenIR iDSP Level II System from Listen Technologies comes complete with everything you need to begin transmitting audio and meeting assistive listening requirements. Ideal for small or medium sized venues with a capacity of up to 50 seats, the LS 91 offers a convenient way to add secure assistive listening capabilities to boardrooms, courtrooms, theaters, educational spaces, and more. Each system includes one LT 84 Transmitter Radiator