Currently has the green learn button under the light cover
Or you are using 81LM remote
Order this remote if your opener:
has a green programming button and a remote that starts with an "8"
Stinger 390LMPB1V Garage Door Opener Visor Sized Remote is compatible with LiftMaster and Chamberlain 390Mhz billion code systems with a green learn button on the motor head under the light cover.