The Leviton Decora Smart Wi-Fi Fan Speed Controller in White (DW4SF-1RW) is a smart home device that allows you to control your fan speed remotely using your smartphone or voice commands. With compatibility with Google Home, Amazon Alexa, and IFTTT, this switch features a modern design and a matte finish that blends seamlessly with any room decor. The controller is suitable for wall mounting and has a single outlet with a maximum amperage of 20A, making it ideal for efficient fan control in any room of your home.