Shure GLXD4R Advanced Wireless Receiver
The GLXD4 single-channel wireless receiver features revolutionary LINKFREQ Automatic Frequency Management (2.4 GHz frequency band) and battery rechargeability. An integrated battery charge port can charge a spare Shure lithium-ion battery while the system is in use. Allows operation of up to 4 compatible systems in a typical setting, and up to 8 maximum under ideal conditions. For use with GLX-D® Digital Wireless Systems. Note: When purchasing separate wireless components, please match their frequency bands to ensure proper system operation.