The Shure QLXD24UK/KSM9 is a handheld wireless system that harnesses technology from Shures most advanced systems for unparalleled signal stability. This is elevated wireless. Built to perform in the most challenging environments. Thanks to an ensemble of powerful features QLX-D does the hard work for you. Automatic Channel Scan quickly locates clear frequencies for your system at the press of a button. And dropouts are eradicated thanks to intelligent Predictive Switching. Even running multiple systems is effortless. Combined with the KSM9 microphone transmitter the QLXD24/KSM9 delivers incredible sound in a sophisticated wireless system. For events that demand perfection.