Old-school DOD A-B switch. This is a passive pedal you can use to hop from one amp to another (or any other source) - no power needed. Super simple and effective pedal - built like a tank too.
As you can see, this one has been around the block a few times but it still works just fine. No box or paperwork - all that disappeared ages ago.
No trades, cash only. Hit me with any questions ya got! Best way to contact me is through email here.