M's T-BAC II ELECTRONIC BOOST CONTROLLER

I recently won this on EBay:

Boost Controller

But as with most EBay auctions, there is no instructions. Anyone here familiar with this controller or better yet have a copy of instructions you can email me?

Or if anyone knows what the 4 dials are for, (C/W, Volume, V-Volume and Time) please let me know so I don't spike and blow!

I think Volume is a low boost setting and V-Volume is a high boost setting, cause there's a V-Volume button on it as well. But correct me if I am wrong.

I'm stumped on the C/W and the Time dials though.

Thanks a bunch guys n gals.