Rare small box transition model of Dunlop’s Tremolo. No returns. USA lower 48 only. Tremolo written above knobs on small box. 3 knobs: intensity, shape, speed. No manufacturer name on pedal. 9 volt battery powered under backplate. I couldn’t find another example on the internet and lots of opinions on the forums. Thanks. I’d say it’s late 1990’s Dunlop. But I’ve also been told it was made for a very short time in 2015. I am no expert. It is the only one that offers the original TS-1 analog circuit in a compact MXR size that still runs on a standard 9V battery or power supply. This makes it the "Holy Grail" for players who want that specific vintage sound without the giant footprint.