The 318BT is a small, in-line wireless audio receiver that utilizes the 4.0 Bluetooth * technology to stream audio from any Bluetooth enableddevice. This AudioStix is powered by phantom power. If phantom power is not available it is equipped with a micro USB port for external power source.It is as simple as plug, connect and play converting any mixer console to be Bluetooth enabled.Features Powered by 48V Phantom Power No cable, battery or software needed Enhanced Range: 50 100 Durable anodized aluminum housing L-R audio summing Featuring Switchcraft s Balanced Connector Front LED status indicatorSwitchcraft Item No. 318BTGet yours today; with the security of our many decades of experience and Sam Ash Direct efficient order processing, your satisfaction is guaranteed!