This is a fuzz pedal from Skreddy Pedals, based on the Fuzz Face. Among Fuzz Face-type pedals, it offers a wide range of controls, allowing for various sound creations. I purchased it used and have used it for live performances and studio sessions. Operation has been confirmed. Includes the pedal itself, box, sticker, and instruction manual. The following is the manufacturer's description: The Skreddy Pedals BC109 Fuzz is a fuzz pedal that uses stable current silicon transistors that are not affected by temperature. Its slightly dark characteristics allow it to produce sounds similar to germanium transistors. The BC109 Fuzz circuit uses a total of four transistors, making a two-transistor fuzz smoother and quieter. With its versatile controls, it can emulate various vintage fuzz sounds from the 60s to the early 70s. Through noise reduction, tone adjustment, and an input impedance switching switch, the BC109 Fuzz has succeeded in creating a variety of vintage fuzz sounds. From raspy to smooth sounds, and from bright to dark tones, a wide range of sounds can be created.