BLX Guitar Wireless System from Shure joins world-class design and with simple and easy setup and operation, featuring QuickScan Read moreGo to the glossary">frequency selection, for legendary sound and performance, right out of the box. Included: BLX4 single channel wireless receiver; BLX1 bodypack transmitter; WA302 guitar cable; PS23 power supply and URT2 rack tray (optional accessories). Features BLX1 Bodypack Transmitter 614-638MHz: TQG connection for use with Shure lavalier, headset, earset and instrument microphones and guitar cables Toggle on/off switch 26dB adjustable gain control Lightweight, rugged construction BLX4 Single Channel Receiver 614-638MHz: One-touch QuickScan Read moreGo to the glossary">frequency selection quickly locates the best open Read moreGo to the glossary">frequency (in case of interference) Up to 12 compatible systems per Read moreGo to the glossary">frequency band (region-dependent) Two-color audio status indicator LED Green: Normal audio levels Red: Excessive audio levels (overload/clipping) XLR and ¼” output connectors URT2 Rack Tray ( available separately for BLX4 and BLX88)