Description: Functions: Smart Switch Module WiFi 4 Gang. Turn ordinary non-smart appliances or equipment into smart; Mobile App control. Control the switch, timing, countdown and other functions of the device through the mobile phone. Voice control: Support voice assistants,works for life apps. to realize functions such as switches. Remote control: It can realize the remote control of the light by mobile phone,as long as your mobile phone can connect to the network, you can control it. Networking technology. One mobile phone can control multiple switches, and one switch can be controlled by multiple mobile phones at the same time. Easy Installation: Less than 10 seconds to wiring WiFi switch with your devices. Simple, convenient, durable insulated terminals, you just need press and Insert cables to finish wiring. Specification: Rated voltage: 90-240V Start mode: mobile APP control, voice control Installation hole distance: 60mm Panel material: flame retardant material Copper sheet material: copper Electric life: 100000 3C rated voltage range: 440V and below Current: 10A Size Chart: 52x47x22.5cm/20.47x18.50x8.86inch Package Includes: 1 Piece WiFi Relay Switch  1 Piece Manual Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful on-line shopping!