2 Pcs DC 5-24V Key Chain Remote Garage Door Opener Learn Button Fit Liftmaster Features: All of our items are brand new Works with Purple Learn Button Only - 315mhz frequency 1 channel/button transmitter  Easy to program and use Lightweight and portable keychain style Open/close 1 garage door  opener  Key ring and battery included  Compatible with Sears Craftsman, Chamberlain, and Liftmaster models AccessMaster, Raynor LiftMaster : 355LM , 365LM , 370LM , 371LM , 371LMC， 372LM，372LMC，373LM，373LMC , 373P , 373W , 374LM， 374LMC，376LM，377LM，377LMC , 378LM，398LM，41A6127-1 Chamberlain:  41A6318、940D , 940CD , 950D , 950CD , 953D , 953CD，956D， 956CD Sears Craftsman :  139.18191，139.18192， 139. 53752 , 139.53753，139 53754. AccessMaster :  371AC，373AC，377LG Other: 940DID and 953DID Raynor:  371RGD，372RGD，373RGD，373PRGD and 377LG Tips:Make sure again that your garage remote is listed above, or your opener has purple learning button, otherwise it will not work-this remote operation is not universal.DataCaciques