Alesis SR-16 professional stereo drum machine. New, never been out of the box. Unit has 233 stereo samples and 50 presets performed by professional drummers. Complete MIDI implementation for use with keyboards, computers, and electronic drum kits and 2 ¼" footswitch inputs. Assignable reverb and ambience, 12 velocity-sensitive pad buttons with Dynamic Articulation functionality. Features a pair of assignable ¼" stereo outputs, a 7-position panner, and lets you create and save your own patterns and songs. A video of the unit's basic functionality can be found on Youtube (That is not me, just a video I found). Retails at Amazon for $200. If you are looking for guitars, amps, or other accessories, please check out my other ads as I am clearing out most of my guitar collection, thanks.