Start your assistive listening setup affordably with the LP-4VP-072 Assistive Listening DSP Value Package. Meeting the basic assistive listening needs for classrooms, theaters, business meetings, training sessions, and more, the LP-4VP-072 includes our LT-803 stationary transmitter, four LR-3200-072 receivers, a 90-degree helical antenna, earbuds, and a signage kit for full compliance in a basic system. Three channels makes it simple to install, manage and use. The assistive listening system is capable of broadcasting on 3 wide band channels and be frequency agile. The LR-3200-072 receivers are frequency agile to 3 wide band frequencies set with a “channel select” mode. The receivers incorporate a stereo headset jack that allows the user to plug in either a mono or stereo headset and listen to audio normally. The receivers also incorporate automatic battery charging circuitry for recharging of the Lithium Ion battery. The receivers will fully charge in under 2.5 hours and have a battery run time of over 24 hours .