The Auto Wah pedal from Donner Company with the name of Dynamic Wah, which is also a analog circuit pedal. A very good wah effect in the whole Aluminium-alloy stomp box. This is a wonderful pedal. Fully controllable envelope filter with unique decay control, highly accurate and very fast tracking. This crafty circuit enables incredibly responsive envelope performance, even during rapid fire playing. There are four function knobs, namely SENS, RES, DECAY and RANGE. SENS is used to controls the sensitivity. RES is used to control the filter sharpness. DECAY is used to control the filter frequency falls back to the resting point. RANGE is used to control the filter frequency range. You can just control three function knobs and choose the model you want to made you own music tone. Enjoy your own fun and colorful life.

Model: EC1005