With detachable antennas and rack hardware included, GLXD4R receivers quickly integrate GLX-D Frequency Managers and remote antenna accessories for rock-solid multi-system installations. The Shure GLXD4R Advanced Wireless Receiver features removable antennas for exceptional audio and rock-solid performance in multi-system installations for house of worship, education and live music applications. Features: Rock-solid RF Performance from patented data communicationIntegrated battery charge port fo