One main toggle switch. 1 knob for wah. With main switch off no sound from the amp. Uses two 9volt batteries or 12 - 18 volt dc adapter. Has 2 easily seen red lights.
Distortion is a bit weak and tinny.
Increasing the distortion and or the tone increases the hiss and distortion does not change much but the tone gets higher. With only the wah there is just a bit of hiss. Using only the wah function is not like a crybaby. The volume also increases when the pedal goes towards the toe-down position. I don't try to imitate anyone.