Native Instruments Traktor Kontrol S4 MK2 DJ Controller<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Industry-standard 4-deck controller， soundcard， flagship TRAKTOR software. TRAKTOR software disc is not included and needs to be downloaded free of charge </span></li><li><span class="a-list-item"> Improved look， feel， and visual feedback </span></li><li><span class="a-list-item"> Plug and play with TRAKTOR DJ for iPad and iPhone </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/513zVhVBvEL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31oMhAGIWsL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31eRRpV90iL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51DeovIax-L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41rK6PVVcVL.jpg" noproxy>