Clicker products replace your lost or broken Garage Door Opener Remote Control or Wireless Keyless Entry to provide you with convenient and secure access to your garage. Clicker products are intended to be used only with garage door openers manufactured after 1993 that utilize photo-eye safety sensors. These are always located and attached on the bottom of the door track. If your garage door opener does not have these sensors attached and working, the opener is not compliant with current federal safety regulations and should be replaced. Features Operates 1 or 2 Garage Doors/Gates Even if They are Different Brands Attaches to Your Car Visor Long-Life Lithium Battery Included Compatible with Genie(r), Stanley(r), Wayne-Dalton(r), Craftsman(r), Chamberlain(r) and LiftMaster(r) Openers 1-year Limited Warranty