Model 372LM / 372LMC 2-button visor remote for LiftMaster garage door openers manufactured 2005 and later. Features 315 MHz frequency with Enhanced Radio Technology (ERT), over 100 billion rolling codes, and dual-channel operation to control up to 2 garage door openers. Programmable via the purple LED light on compatible openers. Controls door open/close and opener lights. Includes visor clip or key ring attachment and lithium battery (5-year lifespan with normal use).