Teenage Engineering PO-16 factory, lead synthesizer, multiple real synthesizer engines, including fm, subtractive synthesis, wave table and physical modeled string. 16 punch-in effects including delay, bit crusher and filters. 16 punch-in arpeggio and chord play styles, parameter locks. auto compressor, hardware limiter, 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