In terms of tweaking the sound, the Duo has two oscillators, a simple envelope generator, filter and two additional effects. For the older kids (read: adults), there's MIDI in/out as well as sync in/out which means you can use the gadget alongside a Korg Volca, Teenage Engineering Pocket Operators, Boss guitar effects pedals and more. The Dato Duo will set you back €299 (around $334), unless you're quick enough to cash in on the early bird discount. If you do decide to commit funds, the instrument isn't expected to ship until April of next year.