KingTone Mini Fuzz V2 This effects pedal recreates the Fuzz Face. In addition to Volume and FUZZ controls, it has a BIAS knob, allowing you to experiment with various bias matching sounds. The LED lights up when the bias is set correctly. It also features a switch to select between Silicon and Germanium transistors, and a switch to choose between FAT, ZONK, and VINTAGE tones. Furthermore, there are six dip switches on the side of the unit, allowing for fine-tuning. I believe it's in beautiful condition. There are no operational issues. It's a genuine TONE BLUE product and comes with the box and instruction manual.