This is a kind of intelligent BT gateways, the data signals are cordless transmitted, you can remote monitoring through your mobilephone. The mobilephone needs to be linked with gateways via BT to control Tuya Wifi and Tuya ZigBee device by using Tuya APP. Scene linkage, support Tuya/SmartLife APP with custom scene settings, and can be linked with ZigBee and WIFI devices.Features:Compact size, no wiring design for quick and easy installation, will not occupy to much space.The data signals are cordless transmitted, you can remote monitoring through your mobilephone, and the mobilephone needs to be connected via BT to control Tuya Wifi and Tuya ZigBee product by Tuya/SmartLife APP.Stable signals, support wide coverage, strong wall penetration ability, and strong anti-interference ability.The same network supports multiple devices to work at the same time to improve network reliability.Scene linkage, support Tuya/SmartLife APP with custom scene settings, and can be linked with ZigBee and WIFI devices.Compatitable with Alexa and Google Home for free voice control of your connected devices for added convenience.Wide applications, it can be used in your home, office, hotel and so on.Specifications:Name: Intelligent GatewaysMaterial: plasticsColor: whiteAdapter output: 5V 1AIndicator light: 2*LED (Wifi+BT)Working temperature: -10 to 55Working humidity: 10%-99%Technology: Wifi 802.11 b/g/n; BT singlepointMeshItem size: 65 * 65 * 14.5mm / 2.56 * 2.56 * 0.57inItem weight: 29g / 1.02ouncePackage size: 67 * 67 * 38mm / 2.64 * 2.64 * 1.50inPackage weight: 84g / 2.96ouncePacking List:1 * Intelligent Gateways1 * USB Cable1 * Guideline