It's a pedal as boss etc. ... It is metal, very strong and durable over time. The connection is very simple input / output, power supply (Boss type - 9v)
Very simple product to use, is connected, turn the knobs and we play! 2 types of bran, which can allow a ocatver down to 2 octaves, and a drive mode that allows you to make sound 1 octave below but in saturated ...
A product of unbeatable value for money (compared to competitors ...) This product is ideal to be used occasionally in pieces.
I use it for some months and I can not part with it. I use it sometimes in question-answer with bassist ...