SONOFF 4PCS RF Bridge ITEAD 433MHz Smart Home Wifi Wireless Switch

Features:
*App Support: Free iOS and for Android mobile App eWeLink.
*Convert 433MHz RF Remote controller to App via WiFi.
*Make 433MHz RF devices App remote controllable.
*Supports adding up to four 433MHz RF Remote Controller/ RF Curtain Switch / RF Alarm.
*Supports control up to sixteen 433MHz RF devices.
*Remote ON/OFF: Turn connected 433MHz RF devices on/off remotely from anywhere on the App.
*Timing: Supports scheduled/countdown timing tasks to turn on/off at specified time.
*The receiving supports fixed code 433 frequency, like PT2260, PT2262, PT2264, EV1527, etc.
*Voice Control: Works perfectly with Amazon Alexa and for Google Home.