The Beli SP3 is a smart Wi-Fi plug. It can turn electronics off or on from anywhere with your smartphone using the Beli app. You can schedule the Smart Plug to automatically switch off & on when you’re away or select a schedule for controlling many devices with the push of a button. The SP3 works directly with Amazon Alexa and Google Assistant to manage your devices through Voice Control.The Beli SP3 works on secure 2.4GHz wireless networks without the need for a separate hub. Specification Protocol: IEEE 802.11b/g/n Wireless Type: 2.4GHz,1T1R System Requirements: Android 4.4 or higher, iOS 9.0 or higher Package Content: Smart Wi-Fi Plug SP3, Quick Installation Guide Environment: Operating Temperature: 0 ?C ~ 40 ?C (32°F ~ 104°F), Operating Humidity: 5%~90%RH, Non-condensing Dimension: 3.9x2.5x2.5in.(99x64x63mm) ( H?W?D ) Material: PC Button: Power and Reset button LED indicator: Power LED Input Voltage: 100 - 240VAC Output voltage: 100 - 240VAC Maximum Load: 10A Maximum Power: 2.3KW