Nady's low cost listening system provides high performance hearing assistance to anyone in the audience - anywhere in the audience. The system consists of one wireless transmitter and one or more pre-tuned portable wireless receivers. Unlike infrared listening systems, the ALD-800 can be used outdoors and indoors in bright light without affecting performance. The ALD-800 is perfect for virtually any application, from a small meeting room, or a mid-sized house of worship, to a large cinema. The ALD-800 provides high quality hearingassistance to any number of audience members, without seating restrictions. The ALD-800 system has a wireless operating range of 300 feet. The transmitter connects to the line out or tape out from a venue's existing sound system, and broadcasts the audio as an FM radio signal. The transmitter can also be used with an optional microphone. Audience members who desire listening assistance use a pocket size Nady ALD-800 receiver with adjustable volume control and ergonomic, high performance earphones. The ALD-800 system is expandable-one transmitter will provide audio to a limitless number of receivers.