The Personal Infrared System, model JAS485, is a personal amplification system designed for use by individuals with hearing disabilities. This system includes an infrared transmitter/speaker, a microphone, and an infrared transmitter. The system can be used with the microphone to enhance conversation or it can be connected directly to an audio output jack of a television or other audio device. DIMENSIONS: Operates ove an area of approximately 20 feet. WARRANTY: 90-day warranty.