I have had this pedal from new for so many years (maybe 10?) I cant remember.  At one time I had a collection of Genuine USA made VFE pedals.

This is one of the last to be offered for sale. I seldom if ever use tremolo so its spent 99% of its life in its box. In spite of not using
I have been very reluctant to sell this gem of a pedal..

While called 'old school' this tremolo has quite a few additional features way ahead of its time.

There is an input volume feature that speeds up or slows down the tremolo based upon attack / varying input volume.
and a sensitivity control for 'speed depth'.. in other words controlling how much of that effect takes place.

There is a 'starve' option which takes you from a clean tremolo to a dirty choppy trem.

Quite a lot in such a compact pedal and in addition it can take a 9v battery as well os standard pedal power bricks.