Switch Sonoff WiFi para eWelink compatible con Alexa

Power supply: 90-250V AC
Max. Current: 10A
Wireless Standard: Wi-Fi 2.4GHz b/g/n
Security Mechanism: WEP/WPA-PSK/WPA2-PSK
Operating Temp: -20degree~70degree
Material: RF-ABS
Connector: Universal

Functions:
Remote ON/OFF: Turn electrical devices on/off from anywhere App Support: Free IOS and Android mobile App eWelink
Sync Status: Real time device status provided to App
Timing: Set scheduled/countdown timers to turn on/off at specified time
Share Control: Control your smart home together with your family
Scene: Turn on/off a gang of devices one tap
Smart Scene: Trigger on/off by temperature, humidity or other environmental conditions
Network Support: Control electrical devices over Wi-Fi or 2/3/4G mobile network
Voice Control: Works perfectly with Amazon Alexa

How to install this device, please do as follow:
1. Switch off electricity source
2. Open the covers at both ends
3. Connect the two electricity source cables(Live and Neutral) to the ports with "IN" mark, one cable for one port, and there's no limitation for which port to connect
4. Connect the two appliances cables(Live and Neutral) to the two ports with "OUT" mark, one cable for one port, and there's no limitation for which port to connect make the cover install firmly
Welcome to visit the below link get more details of how to use it ,please find "SONOFF (RF) USER GUIDE":
http://ewelink.coolkit.cc/?p=126