This miniscule opener is ideal for motorcycle use when accessing your personal Bat Cave. Keychain–style for convenience, this unit can also slip into the smallest of pockets or mount inconspicuously on a triple clamp with hook & loop or double stick tape. Easy to program, it is compatible with most major brands of garage door and security gate openers. Not compatible with rolling code openers. Works on pre ‘97 opening systems. 1.25"×2.5"×.5"