2-Way WiFi Switch Relay Module 16A Wireless On/Off Device Dual Control Light Switch Remote Control Tuya APP Device Sharing Voice Control Smart Circuit Breaker Countdown/Timing Function Group Control Features: 【Dual Control】: This wireless WiFi circuit breaker supports dual control. Two dual-way switches can jointly control two lights, providing you with more convenience and flexibility in controlling your home lighting system. 【Power-off Memory Function】: Our smart circuit breaker features a power-off memory function. It can remember the state of your devices before a power outage. Once the power is restored, it will return to its previous state, saving you the trouble of resetting. 【Voice Assistant & Tuya APP Control】: This smart circuit breaker supports voice assistant control and can be controlled remotely via the Tuya APP. Whether you're at home or away, you can easily manage your home devices through your smartphone. 【Multiple Control】: One smartphone can control multiple switches, and one switch can be controlled by multiple smartphones. This feature allows every member of your family to control the devices, making your home smarter and life more convenient. 【Timer Function】: The smart circuit breaker comes with a timer function. You can set the on/off time for your appliances or lights, making your home more intelligent and your life more comfortable. Specifications: Rated Voltage: AC 100V-240V 50-60HZ Working Temperature: -10~45 °C WiFi Frequency: 2.4GHz Communication Method: WiFi Tuya APP Product Quantity: 1Pcs, 4Pcs (optional) Product Size: 3.9 * 8.8 * 2.2cm/1.5 * 3.5 * 0.9inch Note: The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. Please allow slight manual measurement deviation for the data. Packing List: 4 x WiFi Smart Switch 4 x Instructions