Product details:

Shure BLX14R Wireless Guitar System with BLX4R Rack Mount Receiver, BLX1 Bodypack Transmitter and WA302 Instrument Cable, Wireless Freedom for Guitari - Shure BLX Wireless Systems combine professional-quality sound with simple setup and an intuitive interface for legendary audio performance right out of the box. Precision-built and available in a variety of configurations, its the most accessible way to own the stage. When performance is set free from wires, it can go to exciting places. But noise and dropouts can stop it cold. BLX Wireless makes it simple to get great sound out of a dependable wireless system. And when you can go wireless without worry, you can perform without limits.Up to 300 feet (100m) transmission radius (line of sight).
Quick and easy frequency matching (GROUP and CHANNEL selection buttons).
Two-color transmitter status indicator LED.
Green: Ready.
Rapidly Flashing Red: Controls Locked.
Solid Red: Battery Power Low (less than 1 ho.