Rock-solid Wireless Performance The Shure SLXD124/85M is a digital wireless microphone combo system that’s perfect for speaking applications. This wireless system includes a Shure SM58 wireless handheld microphone transmitter, a Shure WL185M cardioid lavalier microphone with its accompanying SLXD1 digital bodypack transmitter, and an SLXD4 digital wireless receiver. Shure’s cutting-edge digital wireless technology delivers 24-bit audio resolution with an almost imperceptible 3.2 milliseconds of latency. Add the working range of 100 meters (328 feet), and you have a recipe for serious wireless potential. Are you ready to take the plunge and give your system a much-needed upgrade? You can’t go wrong with a Shure SLX-D wireless microphone system.Perfect for presenters and keynote speakers With the WL185M, you’re setting yourself up for sonic success. This lavalier microphone delivers professional sound in a more compact chassis than ever.