Features: This product is a wireless switch that supports momentary and latching modes. Users can add the device to the Smart Life app to remotely control connected home appliances or devices. In latching mode, users can remotely turn connected devices on or off instantly. In momentary mode, two wiring options are available, and the momentary duration can be configured via the app. 4G-enabled control—no programming required. Connect and control the device remotely from anywhere using the app and 4G network. Note: 1. This 4G switch does not include a 4G SIM card. A compatible 4G SIM card must be provided separately. 2. Based on user feedback, it supports most SIM cards used in Europe and Russia. Compatibility with SIM cards from other regions is not guaranteed. Specifications: Input Voltage: AC 85–250 V / USB 5 V Maximum Current: 10 A Wireless Connectivity: 4G LTE Operating Temperature: –20 °C to 70 °C Operating Humidity: ≤80% RH Color: White Material: ABS Slight variations in printing or labeling may occur between production batches; these do not affect functionality. Color appearance may vary slightly due to lighting or display settings. Package Includes: 1 × Smart Switch