1.Easy guided install: Neutral wire is required, standard wall plate size. No need to understand complex switch, wiring or master vs auxiliary switch configurations 2.Control from anywhere: Monitor your light status. Turn electronics on and off from anywhere with your smartphone using the case app, whether you are , in the office or on vacation 3.Voice control: Enjoy the hands-free convenience of controlling the lights in your home with your voice via or Assistant; perfect for times when your hands are full or entering a dark room 4.Scheduling: Use or countdown schedules to set your smart switch to automatically turn on and off while you're home or away rated voltage: 100-250V Plug Type: US Plug, it applies to Canada, India, Mexico, Thailand, Taiwan, the , the Philippines and so on. Electrical life: 100000 applied range :interior Working temperature: -10-45 specific function: Remote control Connection mode: Zero fire line Installation hole spacing: 118x72mm mechanical life: 100000 times system support: Graffiti intelligence the protection grades: IP20 Wifi type: 2.4Ghz Specifications: Four switches dual control Colour:White Material:PC flame retardant Size:118 x 68 x 33mm Package Contents: 1 x switch button 1 x face frame 1 x package of installation accessories 1 x English instruction manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.