Classic drum machine, my first bit of electronic gear 😂. Personally would say all these volcas benefit from a sequencer or you're restricted to 16 note patterns - but at the same time linking a few volcas is such a great way to get started. Korg power supply included by you'll need a 3.5mm to headphones or 1/4inch, whatever you're using. I don't think that came in the box. You also use 3.5 to 3.5s to send clock info between devices.