GE's Z-Wave 3 Way Dimmer Switch Kit let's you control your home lighting from anywhere in your house. Z-Wave is a radio frequency, mesh network technology specifically designed for use in residential lighting control. Every Z-Wave enabled wall switch is capable of relaying commands and utilizes two-way communications to ensure reliable operation throughout the entire home. The open-air, line-of-sight transmission distance is up to 100-Feet between devices.