Check the listing for details. Switchcraft 318BT Bluetooth Audio Receiver, 3-Pin XLR to Mixer, Phantom Powered. Condition: New. Listed at 134.99 USD. The Switchcraft 318BT is a small, in-line wireless audio receiver that utilizes the 4.0 Bluetooth® technology to stream audio from any Bluetooth-enabled device. 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.FeaturesPowered by 48V Phantom PowerNo cable, battery or software neededEnhanced Range: 50 – 100 ftDurable anodized aluminum housingL - R audio summingFeaturing Switchcraft’s Balanced ConnectorFront LED status indicatorSpecificationsFrequency Response: 73 Hz - 20 kHzTotal Harmonic Distortion and Noise: 0.1% +/- 0.03Bluetooth Version: 4.0Maximum Output Level: -24 dBuCertification: FCCMaximum working range: 50 ft (indoor), 100 ft (line of sight)Frequency band: 2,402 to 2,480 MHzDAC Resolution: 16 bitPower: 46.5 to 48 V