Specification: Protocol: Wi-Fi Rated Voltage: 220V AC. Rated Frequency: 50Hz/60Hz Number of Poles: IP20 Specified Use Temperature: -25°C ~ +65°C Rated Impulse Withstand Voltage: 6kA Instantaneous Trip Form: Rated Short Circuit Breaking Capacity: 6kA Functions: 1. Enjoy more benefits with convenience: Smart Circuit Braker can intelligently control multiple home appliances in a smarter way than ever. Once paired with your devices, you can enjoy most of the brake's smart features. In addition, it is suitable for 50Hz, 230V/400V/0-100A circuit, which has various protection advantages such as overload and short circuit, overvoltage and undervoltage protection. 2. Compatible with Amazon Alexa and Google Home for convenient voice control, making your smart life much more convenient. 3. Wireless Remote Control: Conveniently control your connected devices with the free mobile phone app "Smart Life" no matter where you are. (Compatible with Android and iOS.) Control your appliances ahead of time when you're away from home; Restart state, light mode and backlight on/off