General description This product is a 4 channels universal WiFi wireless smart switch with a 433MHz module, designed for your smart home system. It allows you to remotely and automatically turn on/off home appliances and electronic devices via a phone app. Additionally, it can be controlled by a remote controller indoors. You can connect and control four appliances simultaneously through the app, independently turning each of the four channels on or off. The switch also supports scheduled operations, enabling you to set specific times for turning appliances on or off, and allows sharing control with family members for collaborative smart home management. Technical specifications Model Number: Smart WiFi relay Switch Input Voltage: DC 7V-32V, USB 5V Operating Humidity: 40% ~ 80% RH Working Temperature: -20°C to +70°C Control Methods: APP, 433MHz Remote, Voice Control Measurement Allowed Error: +/- 1-3cm Other information Color: As Shown Material: PCB Package Contents: 1 * Smart WiFi