WIRELESS CONTROL- Control lights and devices within a range of 50 feet in a normal indoor environment with partitions and walls. SMART CONTROL - Switch your WiZ lights on and off or brighten and dim with just one click of the portable button. The battery-powered button works even when your Wi-Fi is down. EASY TO USE - Set it up to control one light, a group of lights, all lights in a room, or all lights in the home. This easy-to-use button will surprise you by working everywhere. SMART FEATURES - The portable button has 4 convenient settings: on off, dim up, and dim down.