Welcome, You are looking at a great piece. This is the Electro-Harmonix Hot Tubes! They decided to re-make the the Hot Tubes pedal so that guitarists won't have to pay vintage pricing for an original vintage one! This incredible nano version has the exact same design as the originals. The volume and overdrive controls allow you to go from slight crunch to searing drive with the turn of some knobs. The tone knob is bypassable with the tone On/Off switch for a crisper, cleaner sound. This is a must-have overdrive pedal for fans of tube-sounding overdrives. We are an authorized Electro-Harmonix dealer. Don't pass this by!