Description:  Sswitch is a Sonoff version with a 433.92MHz RF receiver module inside. This wireless switch can be used together with the RF remote controller, which enables you to control appliances in indoor environment. The remote control switch allows users remote turn on/off connected appliances via app EWeLink from anywhere in the world.   Sonoff wireless power switch is an affordable device that provides users with smart home control. It is a wireless electrical switch that can connect to a wide r ange of appliances. Sonoff wireless switch transmits data to a cloud platform through the WiFi Router, which enables users to remotely control all the connected appliances, via the APP eWeLink. The cloud server of Sonoff RF is Amazon global server.  switch makes all home appliances smart. As long as the mobile phone has 2G/3G/4G/WiFi network, users can remotely control the appliances by turning them on off from anywhere at any time. Another feature available is to set timing schedules for the appliances, which can include scheduled/countdown/loop timers, and can thus, help users maintain an easy life.  The APP eWeLink enables users to control appliances easily. The iOS version of the application can be downloaded in Apple Store while the Android version in Google Play.     Features:  Supports control by 433MHz RF Remote.  Supports status tracking: device status is timely provided to eWeLink.  Supports remote turn on or off connected appliance.  Supports max 8 enabled single/repeat/countdown timers.  Supports numerous WiFi smart switches one smart phone.  Works with Amazon Alexa.  Works with Google Home, Google Home Mini.  Works with IFTTT.     Specification:  Voltage Input: 90-250V AC(50/60Hz);  Max. Current: 10A;  Max. Power: 2200W;  Dimensions: 88*38*23mm (L*W*H);  Wireless Standard: 802.11 b/g/n & 433.92MHz RF;  Humidity: 5%-90%RH, Non-condensing;  Operating Temperature: 0ºC-40ºC(32°F-104°F);  Enclosure Material: Fire-retardant ABS V0;  Weight: 52.0g;  Gang: 1;  Color: White;  Certificate: CE (download).    Package included:  1 x Sonoff RFR2 switch 1 x English Manual Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store