Bom-Chika your Waw-Waows automatically with this little box of innuendo. 

Model: MXR M188 Bass Auto Q 
Made: USA, recent model
Serial: N/A
Type: filter/auto-wah
Power Input: standard 9v DC centre-negative (supply not included)
Accessories: none

Condition notes: used, no major marks. Tested and fully functional. Battery cover mising.
Overall: very good condition (8/10)