The Shure GLXD14+ is a digital wireless lavalier 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 your presentations, broadcasts, interviews, and events at a typical range of up to 100' indoors and 65' outside.