Universal: Compatible with LiftMaster, Chamberlain, and Craftsman garage door openers manufactured from 1993 to the present. Supporting three rolling code frequencies, it is the ideal solution for adding an extra remote for families with multiple vehicles or for replacing a lost or broken one. Secure and Reliable: With the latest Security+2.0 rolling code technology, it significantly reduces radio interference. This rolling code protects against unauthorized access by generating a new security code every time the remote is used. Long-Distance Remote Control: The remote operates within a 36-meter radius of the opener for instant access. Multi-Channel: Its 3-button design allows you to control up to three garage door openers or gates simultaneously, eliminating the need to carry multiple remotes. Comes in a two-pack: We have included two remotes so you can enjoy instant access, even if one goes missing. You can also give one of the remotes to your family; when you take the remote from the house and your family enters the garage, another remote will be helpful.