Thank you for viewing. I was using this until recently, so I've confirmed that it works. I set the operational feel to be firm so that the volume can be controlled easily with your foot. Velcro tape is attached to the back. It's sandwiched with strong double-sided tape, so no marks will remain. (The white parts are also double-sided tape) If you want the normal feel when stepping on it, please let me know after purchase and I will adjust it. - Included: Connection cable, instruction manual