Alesis SamplePad 4 4-Pad Sample/Loop PlayerThe SamplePad 4 from Alesis is an all in one percussion, loop playing, and sample triggering instrument. Take advantage of this instruments USB MIDI output to connect to your computer and access virtual instrument and recording software (not included). The SamplePad 4 comes with a power adapter, meaning you can get pounding and playing right out of the box. This all in one instrument's 4 rubber pads are responsive to the touch, making it easy to