Simple Installation: As a dimmer compatible with Single-Pole, 4 Way, and 3 Way Smart Dimmer Switches, the PDF installation guide will teach you basic circuit knowledge, installation methods, and basic device operation. Simple to Use: The Smart Life app features intuitive interface design and supports voice control via Alexa, Siri, and Google Home. Note: Siri cannot execute commands that haven't been set up. 2024 New Model: The latest upgraded smart switch ensures that dimmers do not interfere with each other, lights do not flicker, and commands are executed stably. It features a digital display touch screen. After-sales Service: We offer a 1-year quality guarantee and 10-year after-sales service. We provide online support for free installation guidance, app instructions, and other related services. About Us: We are a company specializing in smart switches for over a decade, with our own research and development team and manufacturing facility. We accept custom orders. Milfra Smart Dimmer Switch 3Gang Digital Display Single-Pole 3Way Dimmer Smart Switch， 2024 New Model，Works with Siri, Alexa and Google Home，Voice and Remote Control，Neutral Wire Required