Teenage Engineering PO-12 rhythm, drum synthesizer, real synthesised drum sounds, sampled drum sounds, 16 punch-in effects including delay, bit crusher and filters. parameter locks, auto compressor, hardware limiter, step multiplier, fill-ins, 16-step sequencer, 16 patterns, 16 pattern chaining, clock, alarm clock, jam sync with audio through, 3.5 mm audio out / in, animated unique lcd display, folding stand, 2 year standby time, powered by 2 aaa batteries