SONOFF 4CH PRO R3 4-gang Wi-Fi Smart Switch with RF Control

Features:
[3 Working Modes] You can access self-locking, interlock and inching mode on APP directly.
[Run 4 Devices Separately] Allow you to turn on or off 4 connected lights independently.
[Automate More Devices] One channel controls one work status, enable interlock to turn on 1 channel and turn off other channels simultaneously.
[Automatically Turns Off] Don't want to stiffly fumble in the dark for the way? Enable inching mode to set a on schedule for your corridor light, and it will automatically turn off after reaching the preset time.
[Voice Controls Your Home] Compatible with Alexa and Google Home. Wanna turn off the light immediately? Just tell it to do.
[Easy to Out-of-Reach Devices] Mounted on the guide rail, convenient to connect and control devices far from the switch.
[Safe to Use] The durable flame-retardant PC shell provides the maximum safety for connected devices in use.
Note:
1. The device only works with 2.4GHz WiFi.
2. If the router is working in dual-band (2.4GHz 5GHz), please upgrade the eWeLink app to V4.0.0 or above.
3. The Pairing will fail if a wrong WiFi password is input.
4. The device shall get close to router for a good transmission signal condition while pairing.
5. 433MHz RF Controller is not included.