The Williams AV IR+ Emitter (IR E4) is a high-performance infrared emitter designed to transmit audio signals from the Williams AV IR+ Modulator (IR M1). Operating on 2.3 / 2.8 or 3.3 / 3.8 MHz frequencies, the IR E4 ensures secure, interference-free transmission for assistive listening, language interpretation, and other professional AV applications. It features a wide coverage area for seamless audio distribution in conference rooms, courtrooms, auditoriums, and classrooms. With integrated wall or ceiling mounting options, easy connectivity, and support for multiple emitters in larger installations, the IR E4 provides flexible and reliable infrared audio transmission.

Note: For the IR E4 Emitter to function, it must be connected to the IR M1 modulator. Up to 4 emitters can be connected to the IR M1 directly, and up to 16 emitters can be connected with the use of IR A4 arrays.