Technical: Original factory replacement part. Color: Black, 3 volt lithium battery, part #373LM 

Compatibility: Works with all Liftmaster, Sears Craftsman and Chamberlain garage door openers, utilizing the 315 MHz frequency. Works with garage door openers that have a purple programing button and yellow indicator light. Works with Liftmaster models 3850, 3595, 3585, 3575, 3280, 3265, 3240, 3255, 3245, 3130, 1355, and 1345. 

Includes: Remote Control Transmitter, 3 volt lithium battery, visor clip, programming instructions, manufacturer's original packaging, and manufacturer's 1-year warranty. 

Miscellaneous: Also see 373P for the compatible deluxe model of this transmitter.