Rolls PM351 Personal Monitor Station<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> personal </span></li><li><span class="a-list-item"> monitor </span></li><li><span class="a-list-item"> station </span></li><li><span class="a-list-item"> Please note line noise can occur if there are other frequencies close by that can interfere with this unit. To avoid this issue， please make sure that the unit is properly grounded， or you can use a tat clip to make sure levels of other noises are not picked up. </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/410iBgCD-9L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/414fK6ivUXL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31QoLm63-8L.jpg" noproxy>