Roland HandSonic HPD-20<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> 850 percussion sounds including drums， modern electronica beats， and moreRoland's acclaimed SuperNATURAL sound engineImport up to 500 WAV sounds via USB flash memory and assign them to padsEditing capability allows you to tweak and layer instruments and process tones with three independent multi-effects engines， ambience， and EQ13 silicone rubber pads provide ultra-sensitive velocity response and a comfortable feelDynamic pad assignments let you dampen， mute， and tune sounds for authentic perfor </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/51uKPcR19PL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/510auVJgFQL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41QLqT5rCJL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41cQdWYHdlL.jpg" noproxy>