The BLX24/SM58-K3E has revolutionised wireless microphones in the industry. Enjoy all the quality that an SM58 is known for iconic sound. Tour-tough build. But when you perform now, you’re really free. designed to guarantee a strong signal from the transmitter to the receiver. Dropouts and interference are eliminated with Shure BLX Wireless Systems. And Quickscan technology does all the hard work for you with just one touch. It’s as simple as pressing a button to choose the frequency that works best for you. No experimenting. No intricate setup. Only one click.