The Lutron Caséta Smart Bridge enhances the Caséta wireless system by adding control from iOS or Android devices as well as HomeKit integration. If you have an Apple Watch, you can use it to control lights around the home. Or you can use your voice. The smart bridge works with Google Home, Amazon Alexa and Apple Siri voice assistants to allow voice control of your lights. Automate your lighting. The Smart Bridge lets you set up schedules to automatically turn lights on or off based on sunrise, sunset or time of day. Use Smart Away to give your home a lived-in look by turning lights on and off, raising or lowing connected shades when you’re not home. The Lutron Caseta Smart Bridge also integrates with IFTTT, Ring, Sonos, Serena shades, SmartThings, Ecobee Thermostats, Honeywell WiFi thermostats, and HomeKit enabled Hunter ceiling fans. Lutron Caséta Smart Bridge Features: Supports up to 75 Caséta devices Scene control using the app Supports Caséta devices, Serena shades, Pico Remotes Uses Caséta Clear Connect wireless technology Connects to your home network using wired Ethernet Wireless range up to 30 feet to each device (open-air may be further) Caséta repeater may be used to extend range Works with Amazon Alexa, Google Home, Siri voice assistants iOS, Android and Apple Watch apps Supports Geofencing using Lutron app Supports HomeKit Works with IFTTT cULus listed Indoor use only Requires Internet connection for initial set up, firmware updates, date/time dates, app control, etc. Dimensions: 2.75 x 2.75 x 1.19 in (69.9 x 69.9 x 30.23 mm) L x W x H