Sennheiser SKM 100-835 G3 - B Band， 626-668 MHz<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Sturdy metal housing </span></li><li><span class="a-list-item"> 42MHz bandwidth: 1680 tunable UHF frequencies for interference-free reception </span></li><li><span class="a-list-item"> Enhanced frequency bank system with up to 12 compatible frequencies </span></li><li><span class="a-list-item"> Pilot tone squelch for eliminating RF interference when transmitter is turned off </span></li><li><span class="a-list-item"> Enhanced AF frequency range </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/4128%2BjX5qHL.jpg" noproxy>