Alisontech 877MAX Universal Wireless Keypad for Liftmaster/Chamberlain/Sears Craftsman Garage Door Opener(1Pack)

1.Attention: Please watch programming video and follow instruction manual carefully! Works for YELLOW,PURPLE,RED,ORANGE,GREEN Learn Button of Liftmaster/Chamberlain/Sears Craftsman garage door openers. 2.Attention:Please get close to garage door opener to program keypad! 3.Attention: please doing the programming steps faster, If you wait too long (a few seconds) between steps it times out and won’t program. 4.please make sure your garage door opener fully closed first then start to program keypad,otherwsie programming maybe failed.