M-Audio Oxygen 49 MKIV | 49-Key USB MIDI Keyboard &amp; Drum Pad Controller (8 Pads / 8 Knobs / 9 Faders)<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Versatile MIDI keyboard controller powered by USB connection to computer </span></li><li><span class="a-list-item"> 49 full-size， synth-action velocity-sensitive keys </span></li><li><span class="a-list-item"> 8 velocity-sensitive trigger pads for beat production， clip launching and more </span></li><li><span class="a-list-item"> 8 assignable knobs for mixing and manipulating plug-ins/instruments </span></li><li><span class="a-list-item"> 9 assignable faders built in so you can mix with ease </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41MyMuq1VwL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31hRhnCtM3L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31707%2BmoVlL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/515bc6d%2BiiL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51MnUvrT3qL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51pJXOjeCLL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31Mz1bL3L%2BS.png" noproxy>