On/Off Button Style, Neutral Wire Required, Bluetooth And 2 Point 4 Ghz Wi-Fi The On/Off Smart Switch adds smart bulb functionality to traditional bulbs and keeps smart bulbs smart. The smart Wi-Fi switch adds out-of-home control, scheduling and scene setting to traditional bulbs. When CYNC smart bulbs are installed, the smart switch allows app or voice control even when power is turned off at the switch. Pair the Smart Switch with CYNC Smart Bulbs in other fixtures like table lamps and control your all your lights in the room from one wall switch. The On/Off Smart Switch wirelessly connects with other CYNC Smart Switches so you can control the same light fixture from multiple switches without a travel wire, even if the switches are on different circuits. Simple DIY set up. The Smart Switch connects directly with Google Home and Amazon Alexa devices without a hub required. Neutral wire--usually a white or gray wire--is required. Upgrade your smart home and make traditional bulbs smart: The Cync smart button style light switch allows you to make traditional bulbs smart. You can control lights from the switch, or from the Cync App using scheduling and scenes Add convenience with your WiFi Light Switches: Get convenience and comfort with enhanced functionality like out of home control and scheduling, so you never come home to a dark house Easy, DIY Installation: Easy to install on your own or with the help of a professional. Works for newer homes built after the 1980s and requires a neutral and ground wire and 2.4GHz WiFi to enable smart control Alexa and Google Home Compatible (devices sold separately): Using the switch's built-in WiFi, connect to a compatible voice assistant for hands-free voice control Set schedules and save energy: Set a schedule for your lights to turn off when you aren't home so you can save energy and money Packaging May Vary as 'C by GE' is transitioning to CYNC