Shure ULXS4 Standard Wireless Receiver, J1 Includes ULXS receiver, bodypack transmitter, and mini 4-pin connector instrument cable that links transmitter to a guitar or bass Delivers affordable, frequency-agile UHF wireless, giving you clear channels and strong transmission so you can concentrate on your music Receiver's automatic frequency selection scans for open channels Ultrawide UHF band agility operates across multiple TV channels for clear operation anywhere Shure microprocessor-controlled Predictive Diversity anti