One side: crunchy warm overdrive. The other side: signing, compressed, thick nasty distortion. Handy! Both sides have really sensible controls and are easy to dial in a tasty tone, plus the work independently or stack beautifully. These v1 examples are somewhat of a classic.

Model: Visual Sound Jekyll & Hyde Ultimate Overdrive
Made: USA, recent model
Type: overdrive/distortion
Power: standard 9v DC negative supply (not included) or 9V battery
Switching: true bypass
Equivalent new street price (approx): n/a
Mods: none
Accessories: no box or manual
Condition notes: used, no major marks, very good condition