Compact version of the Chamberlain remote. Portable enough for a pocket, purse, or backpack. Great for bikers, walkers, latch-key kids, or just an extra. Versatile 3-button design. Works with all Chamberlain openers from 1993 to present. (Any Chamberlain opener with safety sensors). Signal reaches from greater distances. Secure coded signal cannot be hacked. LED notification light signals activation and helps with programming. Easy push-button programming, sets up in minutes. Includes battery and keychain.