The guitar wah pedal requires a DC (direct current) power supply, while the AC adapter provides an AC (alternating current) power supply. Therefore, the AC adapter is not compatible with the wah pedal.
Additionally, the AC adapter provides a current of 500mA, which is much higher than the required 35mA for the wah pedal. Using an AC adapter with a higher current rating can damage the wah pedal or cause it to malfunction.