The 3 Series was a fun move from JHS: basic pedals, real cheap, but pretty good. This one is a RAT-style distortion, but with a gain toggle to change from a more squished tone to a more open one. It's mean and thick with heaps of gain range. 

Model: JHS 3 Series Distortion
Made: USA, recent model (serial 21282508)
Type: footswitch
Power: standard 9v negative supply
Equivalent new street price (approx): $165aud
Mods: none
Accessories: original box and manual
Condition notes: used, no major marks, fully functional. Overall: excellent condition