Model 374LM / 374LMC 4-button visor remote for garage door openers manufactured 2005 and later. Features 315 MHz frequency with Enhanced Radio Technology (ERT), over 100 billion rolling codes, and compatibility with openers from 2005 onward. Control up to four garage door openers and toggle opener lights on/off. Programmable via the purple LED on compatible openers. Includes visor clip or key ring attachment and lithium battery (5-year lifespan with normal use). Note: Homeowners near military bases operating Land Mobile Radio (LMR) equipment at 390 MHz may experience interference. A conversion kit operating on an alternate frequency is available if needed.