Before purchase, please check your garage door opener This aftermarket replacement remote ONLY works with Purple, Red/Orange, Yellow or Green Learn Button Sears Craftsman / LiftMaster / Chamberlain brand garage door opener (hanging in your garage) made/manufactured from 1993-current that features Security+ 315 MHz / 390 MHz or Security+ 2.0 MyQ or Billion Code technology. NOT compatible with Genie intellicode or Overhead Door openers, Does NOT work for any DIP switches system. Or you can check if your remote control's model number is listed below Security+ 315 MHz (Purple learn button openers 2005-2014) remotes model below LiftMaster: 355LM, 365LM, 370LM, 371LM, 371LMC, 372LM, 372LMC, 373LM, 373LMC, 373P, 373W, 374LM, 374LMC, 376LM, 377LM, 377LMC, 378LM, 398LM, Keyless Entry 65LM Chamberlain: 950D, 950CD, 953D, 953CD, 956D, 956CD, Keyless Entry 940D, 940CD Sears Craftsman: 139.18191, 139.18192, 139.53752, 139.53753, 139.53754, HBW2028 Security+ 390MHz (Red or orange learn button openers 1997-2005) remotes model below LiftMaster: 91LM, 92LM, 94LM, 96LM, 970LM, 971LM, 972LM, 973LM, 973W, 974LM, Keyless Entry 976LM Chamberlain: 950CB, 953CB, 956CB, Keyless Entry 940CB Sears Craftsman: 139.53680, 139.53681, 139.53684, 00953680000, 00953681000, HBW1255 Security+ 2.0 (Yellow learn button openers 2011-current) remotes model below LiftMaster: 891LM, 893LM, 893MAX Chamberlain: 950ESTD, 953ESTD, G953EV-P2, 953EV-P2 and MyQ light control accessory system Billion Code (Green learn button openers 1993-1997) remotes model below LiftMaster: 81LM, 82LM, 83LM, 84LM Chamberlain: 850CB, 853CB, 856CB Sears Craftsman: 139.53879, 139.53859 Typical battery life is 2 years under average operating conditions using standard 3V CR2032 batteries. Not applicable to factory pre-installed battery, which is provided for trial purpose only.