The Alesis SamplePad 4 Compact 4-Pad Instrument combines the reactive triggering experience of the company's most popular pad with a price tag drummers of all stripes can get behind. Built on the foundation of four velocity-sensitive pads (two full-size, two bar-size) outfitted with blue LCD backlighting, the SamplePad 4 comes packing 25 of the most requested percussive samples to hit the ground running. If you want to bring more sounds on, simply load up the onboard SD or USB capabilities to finely tune your library.