Sennheiser XSW 1-825-A Vocal Wireless Microphone， A Range 548-572 MHz<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Excellent live sound featuring Sennheiser renowned 825 Evolution Series microphone capsule </span></li><li><span class="a-list-item"> Antenna-switching diversity reception with integrated Antennas </span></li><li><span class="a-list-item"> Automatic frequency management and synchronization for easy set up </span></li><li><span class="a-list-item"> Selectable UHF frequencies within a large bandwidth </span></li><li><span class="a-list-item"> Up to 10 Simultaneous channels </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41n-wXfdAiL.jpg" noproxy>