Leviton expands DHC control capability with its sleek new HCCKR Key Chain Remote Controller. This handy compact remote control transmitter is conveniently designed to fit on a key chain and is to be used outdoors. The HCCKR can turn lights or appliances ON and OFF via RF (radio-frequency) signals, through walls and ceilings, when pointed in the direction of the transceiver. It can control two DHC-controlled loads with an effective transmission range of 75 feet. A typical application for this unit is the control of home lights from a vehicle when entering one's driveway. ยข The HCCKR Key Chain Remote Controller is an ideal device because of its compact size and easy portability. Turn ON/OFF your home's entry/exterior, garage and driveway lighting as you approach. This gives you the added security of never having to enter a dark house again.