AirLine AR2 Receiver is a compact, portable wireless receiver designed for AirLine Micro systems. It provides a 1/8 inch unbalanced mic/line output suitable for direct connection to mixers, PA systems, or compact speakers. The unit uses a lithium-ion rechargeable battery with up to six hours of operation and offers USB DC input for charging. Tone key and auto mute circuitry help maintain stable performance in RF challenged environments.