Nasty squarewave synth drone sounds in a box. Handy right? Two pitches and a rhythmic clicking, all tweakable via the knobs. Send that nastiness into your fuzz pedal and a giant cavernous reverb and let the drone finish your set for you... job done. 

Model: Dwarfcraft Devices Thumping Double Squaresnake 
Made: Eau Claire WI USA, recent model
Type: noise generator
Power: standard 9v negative supply
Switching: true bypass (toggle only, no footswitch)
Equivalent new street price (approx): $250aud, discontinued
Mods: none
Accessories: no box or manual
Condition notes: used, few light marks, very good condition