Install a light switch anywhere without running wires. The Three-way Wireless Light Switch Kit includes two RF (radio frequency) transmitters that are powered by the press of the switch and can be surface mounted with screws or adhesive. This transmitter sends wireless signals that command the receiver to turn a device off or on. The included receiver is wired between the light fixture and the power source. Uses EnOcean wireless technology. Control 1 load from 2 locations. Add light switches quickly and easily - anywhere.