IR transmitter An infrared transmitter is an electronic device that generates IR light--light with a wavelength of between 1 mm and 750 nanometers--which lies between visible light microwaves in the electromagnetic spectrum.Infrared transmitters are widely used as a means of wireless communication by remote controls for televisions and other electronic devices, such as headrest dvd players. for example, carry a special IR transmitter that they can be usd with wireless headphones
