Electro Harmonix Knockout, effects pedal, Attack Equalizer, convert Humbucker to Single Coil or ST-Style Sound to T-Style Sound, dimensions in mm: (WxLxH) 102x121x64, powered by a 9V battery or a 9V DC power supply (barrel type connector - centre negative, not included, Item No. #108096)
I had great expectations of this pedal, but alas it did not live up to the description. Just doesn't enhance the guitar tone at all, makes it much worse no matter what setting is used. Big thumbs down from me.