The Shure GLXD14+ is a digital wireless performance headset microphone system that offers reliable hands-free audio with outstanding sound quality in a package that's simple to use, even if you've never operated a wireless system before. Shure's next-generation technology handles the set up for you, automatically scanning both the 2.4 and 5.8 GHz frequency ranges to seek out the best possible digital transmission channel to ensure dependable performance for dynamic presentations, demonstrations, performances, lectures, and events at a typical range of up to 100' indoors and 65' outside. This version of the GLXD14+ is configured with a bodypack transmitter and a wire frame SM35 Performance Headset, a microphone designed to provide a secure, comfortable fit for active presenters and performers; the lightweight and low-profile form factor helps avoid fatigue during high-impact use.