The Decora Smart Voice Dimmer with Amazon Alexa Built-in provides hands-free lighting control and the many benefits of Amazon Alexa Voice Services integrated directly into your home to make life simpler and easier. Features best-in-class dimming performance with custom settings in the My Leviton app for preset lighting levels, fade rates, bulb types and more. In addition to being a 3-way capable dimmer, the Voice Dimmer features microphones and speakers so you can also play music, hear the news, check weather, control smart home devices and more using just your voice – no extra hardware required. Includes easy to use mute button as well as a pull tab to disable power. Combine your Voice Dimmer with other Decora Smart Wi-Fi dimmers, switches, and smart plugs to create an easy Wi-Fi lighting solution with built-in voice control, scheduling, lighting scenes and app control from anywhere. Your Voice Dimmer connects to Wi-Fi and uses the My Leviton app, plus works with your favorite smart solutions from Amazon, Google, August, IFTTT and more. Supports 3-way remote dimming with addition of DD00R or 3-way remote switching with addition of DD0SR. Decora Smart devices are designed for countries which follow NEMA standards including the United States, Canada and parts of South America. Alexa interaction available in English, Spanish, and French. Requires 2.4 GHz Wi-Fi network and Bluetooth connectivity (for setup only). Neutral wire required (a neutral wire provides continuous power to the smart dimmer and is required for functionality. If you have questions, please contact Leviton directly or consult a licensed electrician.) Leviton – making your home smarter and safer every day.