Sennheiser XSW 2-ME3 A: 548-572 MHz

If you're after flexibility and freedom of movement, then this user-friendly XSW 2-ME3 wireless headset microphone by Sennheiser is what you need. This set allows you to move around the stage without getting encumbered by wires, while enjoying superior audio quality without interference or signal loss. Thanks to Sennheiser's True Diversity technology, the system automatically finds the strongest, most stable signal at any given time for optimal reliability. Of course, there are also manual adjustment options and a choice between 12 channels, all located on the UHF band.