PRODUCES RETRO 8-BIT SYNTH SOUNDS - The Teenage Engineering PO-28 Robot allows you to create a pattern and tweak its pitch/length parameters to produce 8bit synthesized sounds OFFERS 16 AMAZING SYNTHESIZED SOUNDS - The Pocket Operator Robot features 15 unique synths presets (LFO pulse wave, echo, arpeggio, vibrato) and 1 micro drum kit ALTER YOUR SOUND WHILE PLAYING LIVE - By tweaking the A/B knobs, you can control the automatic vibrato or add an expression (falling chromatic scale effect) in real-time SYNCS WITH MULTIPLE UNITS - You can connect PO-28 Robot with 2 other Pocket Operators using standard stereo audio cables You can also sync PO-28 with external devices like a PC SYNCS WITH MULTIPLE UNITS : You can connect PO-28 with 2 other Pocket Operators using standard stereo audio cables