I'm selling this because I don't use it much anymore. Velcro is attached to the back. The following is a product description: The JHW4 Band Of Gypsys Fuzz is a mini-sized fuzz pedal that recreates the iconic fuzz sound of Jimi Hendrix during the Band Of Gypsys era. Based on the "Fuzz Face Distortion" used in several shows between 1969 and 1970, it features modern functions such as LED, true bypass, and 9V power.