EtekDirect Energy Saving Wireless Remote Control Outlet Switch with a 100-feet Range for Household Appliances and Devices (Battery Included) (3 Pack 2 Remote) Just plug in and use, no installation required. Remotely switch on/off any appliance at the push of a button Eliminate standby power and reduce energy use; save on untility 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 Features low standby power consumption and built-in child protection feature; Outlets remain off after a power outage to save energy Built-in child protection feature; ETL and FCC approved for safety and quality assurance with one year warranty