COMPATIBILITY: It is compatible with most popular brands including Liftmaster, Chamberlain, Genie, Stanley, Moore o matic, Linear, and wide frequency from 300MHz-390MHz. Use our own security technology and have undergone a lot of testing.NOT compatible with garage door openers manufactured by Allstar, Marantec, Hormann, or the Newer Liftmaster MyQ type openers.COLOR LEARN BUTTON: Compatible with purple/yellow/green learn button or DIP switch garage door opener. Some of the red/orange buttons are also applicable.MODELS: Chamerlain/Liftmaster openers: 1345, 1355, 1356, 3220, 3240, 3265, 3270, 3280, 3800, 3500, 3850, 3585, 3595, 950CD, 953D 139.53753. Craftsman: HBW2028. Liftmaster remote model: 370LM, 371LM, 372LM, 373LM, 374LM, 375UT, 971LM, 973LM, 893MAX. Chamberlain remote model: KLIK1U.TWO CHANNELS: Two buttons, able to control 2 different garage doors with one remote. Support very old remotes like multi-code and DIP switch remotes. Easy programming. User manual included.