Alesis SamplePad Pro | 8-Pad Percussion and Sample-Triggering Instrument with SD Card Slot & 5-Pin MIDI In/Out Expandable multi-pad percussion instrument for studio and live performance 8 isolated and responsive rubber pads with blue LED illumination Two pad inputs, kick and hi hat pedal inputs to integrate with existing acoustic or electronic setup USB MIDI to computer, five-pin MIDI input/output, 1/8" audio input 10 kits with 200 sounds included, expandable by up to 32GB SD card