I was using this on a board until recently. Velcro is attached to the back. It works normally. The sound might be unusual though... It's a glitch-type pedal. It's classified as a delay. ・Operation check Power on and sound output confirmed. ・Included items Pedal only ・Notes The item will be wrapped in bubble wrap for shipping. Used cardboard boxes and cushioning materials may be reused for packaging. Please consider purchasing only if you agree to this.