Shure GLXD14RA WireLess For Guitar / Instrument

features :
• Globally unlicensed 2.4GHz frequency band allows operation of up to 8 compatible systems
• LINKFREQ intelligent frequency management quickly identifies the best open channels
• Bidirectional communication lets the transmitter automatically follow receiver frequency changes
• Continuous interference monitoring and automatic frequency switching eliminates signal interruptions
• Transmitter automatically links to receiver for seamless frequency changing
• Up to 16 hours of continuous use with Shure lithium-ion rechargeable batteries
• Transmission radius up to 200 feet
• GLXD4 wireless receiver
• GLXD1 bodypack transmitter
• WA302 guitar cable
• SB902 rechargeable lithium-ion battery; USB charge cable
• Padded zipper case