Listen’s LR-100 Stationary RF Receiver/Power Amplifier is a stationary auditory assistance receiver with a built-in power amplifier. When used with a Listen transmitter, the LR-100 can deliver high quality audio for use in a variety of locations and applications — most commonly with a wireless audio distributed system. This unit has Listen’s signature Look&ListenTM LCD Display showing channel, lock, and battery level. A security cover protects auxiliary and receiver volume, adjustable squelch and trim controls. It has an balanced or unbalanced speaker wire output options. Multiple input options give this unit great flexibility. It’s powered by a 15 VAC/1000mA power input or 12 VDC battery. An antenna is needed for reception.