The CP- 85 is a Bass auto-wah with a full range of impressive sounds. Using a mixture of the 5 controls you can create  extremely dynamic results. The 5 controls (Sensitivity, Bias, Resonance and Decay and Volume) give you many options to produce your personal sound with ease. 

Feactures:

True Bypass design,with aluminium alloy casing

Power Requirement: 9V DC center negative

Current consumption: 50mA

Product Dimensions: 12x9.4x3.8cm 

Weight: 0.35kg