Teenage Engineering PO-20 arcade, Arcade Synthesizer and Sequencer, Chord control and punch-in effects, Fast beat creation and Chiptune improvisation, Synthesized Arcade sounds, 128 Chord chaining, 128 Pattern chaining, 16 Sounds, 16 Punch-in effects, Step multiplier, 16 Patterns, 16 Pattern chains, 16 Global effects, Parameter Lock: 2 parameters per sound, Sync, LCD, Integrated speaker, Line input and output: 3.5 mm jack, Integrated alarm, Power supply via 2x standard AAA batteries