You may have the right amp where this pedal comes from. If you do not think it will be worthless. Like the seller's description, as if he knows what he is talking about.................................
It's probably just a momentary switch that could be used with any pedal (or amp) that has a 1/4" jack for an external switch. If it is a latching On/Off switch, then it's a little more specific. I didn't ask since it's in the UK (too much for shipping for me).
Momentory and latch pedals can be picked up anyhwere eh? Bespeco does great cheap ones, similar quality to the Boss ones but for a third of the price of a Boss.
Oh and it you do play electric piano, or keyboard, those sustainpedals make a great all-round momentory switch as well. Don't ask me how I discovered it, but it is true. So much gear can be applied to universal use, which I really like instead of buying another one of XX because the manual tells you it will not work with the gear from another brand..................Marketing Tool.............Where did I hear that one before??!!