The JK Audio RemoteAmp Two combines professional audio electronics in a rugged new belt pack design. It provides a listen only connection for mono IFB or full bandwidth stereo music listening. Separate volume controls for the XLR and 3.5 mm line input jacks allow a simple mix of mono and stereo sources. The XLR line level input accepts either a balanced mono signal or a party line intercom feed (listen-only). The 1/2 watt, 1/4" stereo headphone jack will cut through any crowd noise. Connect an IFB earpiece to the 3.5 mm earpiece jack for mono operation.