Marshall MXL MM-4000 MiniMixer+ 4-Channel Portable Audio Mixer<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Turns all four inputs into mono-out for computer， DSLR or mobile device </span></li><li><span class="a-list-item"> Line level out for mobile devices; record to mobile device and monitor audio from same jack </span></li><li><span class="a-list-item"> Headphone jack for direct audio monitoring </span></li><li><span class="a-list-item"> USB in &amp; out for audio playback and recording </span></li><li><span class="a-list-item"> Works with all TRRS mics， including the full line of MXL Mobile Media mics </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41YOodXi5hL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41YOodXi5hL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/314g3MXPU2L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41-2Tje76ML.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41Cahw79MEL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/417u0zP1nDL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41mkpkd8ExL.jpg" noproxy>