Aokeo Super Compact 4-Channel Mixer with DC 12V Power Adapter for Sound Reinforcement， Studio， Stage， Choir， Features Ultra Low Noise， Premium Sonic Quality (MK-400)<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Ultra-compact headphone amplifier system for studio and stage applications </span></li><li><span class="a-list-item"> Highest audio quality with virtually all types of headphones even at maximum volume </span></li><li><span class="a-list-item"> 4 independent Mono high-power signal input source and 1 output source </span></li><li><span class="a-list-item"> High-quality components and exceptionally rugged construction ensure long life </span></li><li><span class="a-list-item"> Sound Level control per channel. Easy to carry and for on the go occasions </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/51cPA1WwOrL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51Wtveq2vDL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51FYZqJNEUL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/419aklnvsrL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51X6fKOGOsL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41oPLtevsXL.jpg" noproxy>