974LM Security Plus 4 channel control

4 Channel remote control 390 MHz for use with Security Plus Liftmaster Garage Door Operators.  Liftmaster Security+ Remote Control defeats High-tech Burglary Devices that can Steal your garage door Opener code . This remote open/closed 4 or more garage doors, turns garage door opener lights on and off and even turns inside and outside house lights on and off .  For use with Chamberlain Liftmaster operators with an aornge "Learn" button. The fourth button is capable of learning or matching another CGI manufactured fixed codedmor billion-code remote.  For Commercial or residential use.