2 for LiftMaster Chamberlain Craftsman Garage Door Opener Remote Universal, Security Rolling Code Technology, Long Distance Remote, Multichannel, Replacement for 893LM 893Max

Broad Compatibility: Works with LiftMaster, Chamberlain and Craftsman garage door openers produced from 1993 to current; Compatible for 3 different frequencies of security rolling code, its the convenient option for adding an extra remote to multi-car families or for replacing lost or broken remotes.
Safe & Reliable: It incorporates the latest Security+ 2.0 rolling code technology that effectively reduces radio wave interference, and rolling code safeguards against intruders by generating a new security code each time the remote control is used on your garage door opener.
Long Distance Remote: Garage door opener remote operates within 120 feet from the garage door opener for no waiting roll-in access.
Multichannel: 3 button design enables control of up to 3 garage door openers or gate operators simultaneously, removing the hassle of carrying multiple remotes. Comes in a pack of two: Two garage door opener remotes are provided so that you can still enjoy "no waiting" roll-in access even if you misplace one; you can also share one of the remotes with your familywhen you take the remote away from home and your family needs to enter the garage, the other remote will assist them