The Alesis SamplePad 4 is a compact but powerful multi-percussion pad that lets you add custom sounds to your drum setup. This all-in-one percussion and sample-playing instrument comes equipped with four responsive, LED-illuminated rubber pads, dual zone trigger input, and ten preset kits. Bright blue LED lighting around the pads make them clearly visible in every setting, and the LCD screen keeps kit navigation simple and intuitive. You can drag and drop your samples via USB on a Mac or PC without removing your SD card. For even more flexibility, you can tune and add reverb to your sounds. With a built-in library of the most commonly requested percussion and electronic drum sounds and the ability to load samples, the only limit is your imagination. Note: SD/SDHC card and computer not included. Technical Specs GENERAL Power: 9V DC, 500 mA, center-positive Dimensions (width x depth x height): 10.25” x 7.5” x 2.5” Weight: 2.55 lbs INPUTS / OUTPUTS 1/4” Trigger Input: Connect a dual-zone or single-zone drum pad, cymbal pad, or trigger to this input using a 1/4” TRS cable for dual-zone or a 1/4” TS cable for single-zone 1/4” Main Output (R + L): Use standard 1/4” cables to connect this output to a speaker or amplifier system (For mono sound, connect a cable only to the Left output) USB/MIDI Port: Connect to a computer for use with virtual instrument and recording software SD Card slot: insert a standard SD card (not included) containing .WAV samples 1/4” headphones output: DC Power Input SD CARD SPECS