GLXD24SM58 HANDHELD WIRELESS SYSTEM WITH SM58 MICROPHONE TRANSMITTER SHURE SHR-GLXD24S58The new groundbreaking GLX D 2. 4GHz Wireless Systems fromShure combine the leading edge of LINKFREQ Automatic Frequency Management technology with best in class intelligent lithium ion battery rechargeability, world renowned microphones and unparalleled design and construction. Available in a wide offering of bodypack and handheld configurations including vocal, headset and presenter systems as well as traditional and pedal mounted guitar options.