Featuring pristine 24-bit digital audio and remarkably efficient RF spectrum usage, the QLXD2/SM86 will give you clear, uninterrupted, worry-free performance. Incredibly easy to set up, the QLXD2/SM86 quickly syncs with a Wireless receiver at the push of a button, letting you get right to business. Featuring an interchangeable SM86 microphone capsule, the Shure QLXD2/SM86 handheld microphone transmitter will set you free!