UEB 3 Wireless Remote Control Electrical Outlet Switch Plug Socket for Household Appliances Saves you the trouble of having to plug in and unplug your electric appliances to conserve energy consumption; a great assistant to the mobility impaired. A23 batteries required, not included. Eliminate wasteful standby power and reduce energy use; save on your electric bills and extend product life by up to 15% Strong RF signal works through doors and walls without interfering with other electronics; operating from as far as 100 ft. in line of sight Easy to use and operate: just plug the receiver into any outlet, plug your lamp or appliance into the receiver, and the remote control can turn your item on and off Features low standby power consumption; Outlets remain off after a power outage to save energy; ETL and FCC approved for safety and quality assurance