This is an amazing synth, but somehow Dreadbox after building an amazing (and affordable) synth they do not provide power supply... And they let you using USB charging mobile that you have to find on your own... And this creates all kinds of weird feedbacks no matter what. (Even using the tricks Dreadbox give you, nothing works).
I used it only twice on stage, and horrible ground noises happened out of who knows what... Tried many things, nothing works, it is just not professional in that regard. So so sad. Please Dreadbox abandon this comercial behavior, it just do not work.