Shure BLX14 Bodypack Wireless System with WA302 Instrument Cable, J10 Included: BLX4 wireless receiver; BLX1 bodypack transmitter; WA302 guitar cable Power and battery status LED Adjustable gain control Quick & easy frequency matching 2 AA batteries (included) provide up to 14 hours of continuous use 300 feet (91 m) operating range (line of sight) Quick and easy receiver frequency matching, easily accessible On / Off switch TQG connection for use with Shure lavalier, headset, earset and instrument mics and guitar cables Up to 14 hours of continuous use with 2 AA batteries (included), plus power and battery status LED 300 ft (100 m) operating range (line of sight) Up to 12 compatible systems per frequency band (region dependent), One-touch QuickScan frequency selection quickly locates the best frequency, and Microprocessor-controlled internal antenna diversity. XLR and &#034; output connectors. Two-color audio status indicator LED (Green:Normal audio levels / Red:Excessive audio levels)