Multichannel garage door opener remote 3 button design allows control of up to 3 garage door openers at once, which eliminating the trouble of carrying multiple remote.Intimate service: garage door opener remote control has a built-in battery, and we also give away extra batteries cr2032Long range and stable garage door opener remote working range of 120 feet, no waiting roll-in access;Easy push-button programming: Universal wireless, programming means no cutting into the garage wiring or installation of an unsightly receiver.Security+ 2.0 and Rolling code technology , the highest level of encryption, prevents hacking and provides peace of mind.Garage door opener remote Compatible with 1993-current Liftmaster Sears Craftsman Chamberlain brand openers with Purple Red Orange Yellow Green smart learn button. CAN'T support Dip Switch ones.