Wide Compatibility: Universal garage door remotes compatible with Liftmaster/Chamberlain/Craftsman garage door openers manufactured since 1993 with yellow, purple, red/orange and green learn buttons[Not support dip switch garage door openers remote!] Advanced Security: The 893LM universal garage door opener remote works with the latest Security+ 2.0 rolling code technology to reduce radio wave interference and providing protection against intruders by generating security codes every time the garage door remote is used Easy to Use: Refer to the garage door opener remote instruction to confirm the brand and model of the compatible garage door opener and select the corresponding learning button for programming. The garage door opener can be conveniently placed on the can visor using the visor clip Slide-lock Keychain Remote: Avoid you from accidentally pressing the buttons. Compact and lightweight, with metal reinforced key chain hole which won't be broken for pressure, key chain included for each Universal 893MAX garage door opener remote keychain,Built-in LED transmitting & low battery indicator Compatible models: 893MAX garage opener remote is suitable for 891LM, 893LM, 371LM, 372LM, 373LM, 971LM, 972LM, 973LM, 81LM, 83LM, 950CD, 953CD, 950CB, 953CB, 139.53753, 139.53681, 139.53680 remote control, etc Colour:As Shown Material:plastic Package Contents: 2 * Remote control 1 * screwdriver Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.