Note: Users need to buy an extra RF remote controller to control the product locally.Overview:This RF WIFI Switch Relay Module is a low-cost, affordable device with a 433MHz RF receiver module inside. This wireless RF switch can be used together with the RF remote controller, which enables you to control appliances indoor without phone APP. It allows users to remote turn on/off connected appliance of different types and brands via app "Tuya/SmartLife" from anywhere in the world, and it can provide you with amazing smart home control experience. It sends data to cloud platform through the WiFi Router, which enables you to remotely control all appliances with APP "Tuya/SmartLife" on your smart phone. It makes all your home appliances smart, as long as your phone has network you can remotely turn on or turn off your appliances from anywhere at any time. And by setting timing schedules for your appliances, you can maintain an carefree life.Features:*Supports WiFi network. *Supports status tracking: device status timely provided to the "Tuya/SmartLife".*Remote Control: Supports remotely turn on or off connected appliances, for example light, electric kettle, electric rice cooker, electrocar, etc.*Supports control by 433MHz RF Remote. After successfully learning codes with 433MHz RF Remote, the RF switch can be turned on/off by remote control indoors.*Timing Function: Supports max 8 enabled scheduled/countdown/loop timers for each device.*Supports numerous WiFi smart switches on one smart phone.*Voice Control: Compatible with Amazon Alexa/Echo, for Google Home, for Google Nest, IFTTT.*The cloud server of Smart Switch Module is "Amazon" AWS global server.*Supports off-line operation: APP remote control even without network suddenly.Specifications:Voltage range: 90-250v AC(50/60Hz)Max current: 10AMax Wattage: 2200WSize: 90*40*24mm (L*W*H)Transmission mode: Wi-Fi communicationWireless Standard: 802.11 b/g/n & 433MHz RFControl mode: Mobile APP for Tuya/SmartLifePlatform: for Android, iOSControl distance: infinityControlled lines: 1Enclosure Material: Fire-retardant ABS Humidity: 5%-90%RH, Non-condensingSecurity Mechanism: WPA-PSK/WPA2-PSKOperating Temperature: -20C-70CPackage Information:Package Size: Approx. 9*4.2*2.5cm/3.54*1.65*0.98inPackage Weight: Approx. 60g/2.1oz Packing List:1 * Smart WIFI Switch Module 1 * Set of Mounting Screws1 * User Manual (English)