Portable infrared hearing systems are a cost effective and easy to use alternative to perimeter induction loop systems. They have the advantage of no trailing wires around the area to be covered and can be set up in minutes. They are also ideal for meetings of a confidential nature as the infrared light cannot penetrate the walls of the room.

An infared system comprises a infrared radiator (transmitter) and receivers. The radiator transmits the audio source in the form of (invisable) infrared light and the receivers convert this light back into audio.