Audio-Technica ATW-T220a 2000 Series Handheld Dyn Mic/Trnsmttr， Channel L<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Rugged high impact housing with integral antenna 10 compatible user-switchable channels in one of two UHF frequency ranges High-quality， dynamic cardioid microphone element with integral shockmounts for low handling noise Two-stage pop filter to protect against "p" pops Switchable transmitter power output with high and low settings offered Integrated two-position power/mute switch </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/31aL5B7u9bL.jpg" noproxy>