RAT 2 - Compact Guitar Distortion Pedal The RAT 2 from Pro Co Sound provides classic RAT tone in a compact and portable design ideal for casual or professional guitarists. Great as a primary distortion or as a boost to your amp's natural distortion the RAT 2 excels at versatility. Knobs for filter volume and distortion let you find the perfect settings. Turn the filter all the way up to roll off brittle high-end or turn it down to let your guitar's brightness come through. True bypass switching ensures that no unwanted noise enters your signal path when the pedal is off. The virtually indestructible steel construction is made for life on the road. Industrial-grade knobs switches and jacks stand up to the rigors of daily use. The sloped face and glow-in-the-dark graphics make for easy stomping and settings changes even during a lighting change. The unit can be operated from a 9V battery or from a wall outlet.