I mean, it's a Harry Potter reference in the title. What more could you want in a compressor, really? It sounds good too. It's optical based, so it's nice and natural and the treble and blend controls allow for some tasty tweaking. 

Model: Pigtronix Philosopher's Tone Micro
Made: USA, recent model
Type: noise gate
Power: standard 9v supply or battery
Switching: true bypass
Equivalent new street price (approx): $195aud
Mods: velcro added
Accessories: no box or manual
Condition notes: used, no major marks, very good condition