Leviton HCCKR-E Wireless Keychain RF Remote, Black Turn lights ON from the safety of your car Remote (RF) works from up to 75 feet away through walls and ceilings Must be used with the DHC HCPRF Transceiver Shut OFF power to garage door opener for added security DHC Receiver Wall Switch Modules also can be used for DHC local and remote dimming, ON/OFF switching and scene lighting control installations