Shure A15TG Tone Generator 1，000 Hours of Battery Life Under Continuous Use， On Off Switch<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> The A15TG can tolerate the presence of phantom power or a short circuit in the line that it is driving </span></li><li><span class="a-list-item"> Recessed On-Off switch， a Male XLR output connector </span></li><li><span class="a-list-item"> Removable end cap allowing for easy battery installation and removal. </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/31XCY4Y8UjL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/2160a1OQV1L.jpg" noproxy>