The Shure QLXD24/SM58 handheld wireless microphone system is an excellent solution for wireless vocals in midsized presentation spaces, music venues, and houses of worship. Featuring pristine 24-bit digital audio and remarkably efficient RF spectrum usage, the QLXD24/SM58 will give you clear, uninterrupted, worry-free performance. Incredibly easy to set up, the QLXD24/SM58 wireless system's receiver finds open frequencies and deploys them to its transmitter with the push of a button.