Feature:1. Remote Control ON/OFFTurn electrical devices on/off from anywhere via APP "EWeLink"2. App SupportFree for iOS and Android mobile App eWeLink3. Energy Monitoring - View and export 100days energy consumption data.4. Sync StatusReal - time device status provided to App.5. Share ControlControl your smart home together with your family through APP6. Schedule TimerSet scheduled/countdown timers to turn on/off at specified time7. Smart ControlWorks perfectly with Alexa, Home, Nest, IFTTT8. Remote Control ON/OFFTurn electrical devices on/off from anywhere via APP EWeLink9. Remote Control ON/OFFTurn electrical devices on/off from anywhere via APP EWeLink10. App SupportFree for iOS and Android mobile App eWeLink11. Energy Monitoring - View and export 100days energy consumption data. Schedule Timer Set scheduled/countdown timers to turn on/off at specified time12. Sync StatusReal - time device status provided to App.13. Share ControlControl your smart home together with your family through APP Smart Control Works perfectly with Alexa, Home, Nest, IFTTT14. Remote Control ON/OFF Turn electrical devices on/off from anywhere via APP EWeLinkSupport iOS and Android-Sync StatusReal - time device status provided to App.15. Energy Monitoring - View and export 100days energy consumption data.Specification:The smart WiFi switch - Sonoff Pow R2 allows you to remotely manage and control your appliances and monitor your home energy usage. The eWeLink app provides 100 days recorded electricity usage data, Real- time device status provided, and to set scheduled/countdown timers to turn on/off at specified time. What's more, the switch works perfectly with Alexa, Home, Nest, IFTTT.Main Features:Remote Control ON/OFF Turn electrical devices on/off from anywhere via APP "EWeLink"App Support Free for iOS and Android mobile App eWeLinkEnergy Monitoring - View and export 100days energy consumption data.Sync StatusReal - time device status provided to App.Share Control Control your smart home together with your family through APPSchedule Timer Set scheduled/countdown timers to turn on/off at specified timeSmart Control Works perfectly with Alexa, Home, Nest, IFTTTConnection:1. Search and download the APP "eWeLink" on the App Store or Play.2. Log in or Register an eWeLink account.3. Open the front cover, power up.4. Press the button for 7 seconds until the Wifi LED blinks repeatedly.5. Tap + on eWeLink APP.6. Input your WiFi SSID & password.7. Name your device to complete.8. When the WiFi LED is on, the device is online. Start to control now!*** Please read the User Guide carefully before use.Specification:: SonoffMode: Pow R2Color: WhiteWi-Fi: 2.4GHz 802.11 b/g/nVoltage range: 100-240V ACMax current: 15AMax Power: 3500WSecurity Mechanism: WPA-PSK/WPA2-PSKHumidity: 5%-90%RH, Non-condensingEnclosure Material: Fire-retardant ABSOperating Temperature: 0oC-40oC(32F-104F)Product size: Approx. 11.4 * 5.2 * 3.2cm / 4.49 * 2.05* 1.26inProduct weighs: Approx. 73g/2.57ozPackage Size: Approx. 12 *5.5 * 3.5cm / 4.72 * 2.17 * 1.38inPackage Weight: Approx. 84g / 2.61ozNote:1.The Alexa and Home are not included.2.Item color may show slight aberration due to different shooting light and monitor display.3.Product size, product weight, and related specifications are theoretical values only. Actual measurements between individual products may vary.Package list:1 * Sonoff Pow R21 * ManualPackage List:1 * Sonoff Pow R21 * Manual