Proper hectic. This takes your tone down two octaves and adds a nasty fuzz. The toggle switch on the side brightens things up for extra definition. The blend controls the mix between the standard pitch and the lowered pitch. It's nasty, a little glitchy, thick and punchy and all sorts of wrong and evil. You'll love it.

Model: MXR Blue Box (Script Logo Reissue)
Made: USA, 1990s approx 
Type: fuzz + 2 octaves down
Power: standard 9v negative supply or battery (not included)
Switching: true bypass
Equivalent new street price (approx): n/a
Mods: toggle switch added 
Accessories: no box or manual
Condition notes: used, no major marks, very good condition