Russound Bluetooth source kit for C-Series Systems... The BSK-1 Bluetooth Source Kit enables a portable media player, smartphone, or other device equipped with Bluetooth wireless technology to transmit audio content to any multiroom audio system. The BSK-1 kit can be used as a global source for system-wide access, or as a Local Source for independent use by a specific room when used with a C-Series system. Local source use with C-Series controllers provides additional automation features automatically turning on the audio, selecting the BSK-1 source input and setting the volume in a room configured as the "Primary Zone" via SCS-C5 software. The BTC-1x Remote Transceiver is wired with a single CAT-5 cable up to 300" allowing for optimum placement in different system environments. It also features a class 2 transciever with a 49" (15m) range and the Advanced Audio Distribution Profile (A2DP) ensures high quality stereo audio. The BTC-1 serves as a streamlined termination point for power, audio and 12VDC trigger connections to the host audio system.