Plug-and-play solutionDiversity System on receiver and transmitterIncludes:1 x DSR70 DUAL Receiver 1 x DHT70 Perception Hand-held Transmitter 1 x Universal power supply with US/UK/EU/AU adapter 2 x AA size battery1 x Stand adapterDSR70 Dual RecieverDynamic frequency selection automatically selects the best frequency bandStandard AES 128-bit encryption prevents tapping of the audio signalAuto correction switch, more processor power for clearer signals2-channel receiver with 2 audio outputs 6.35mm