UB Sonoff SONOFF 4CH R3 Smart Switch, Wifi , Alexa,& Google Home Assistant Smart Switch  (White)

Automate More Devices - Interlock Mode One channel controls one work status, enable interlock to turn on 1 channel and turn off other channels simultaneously Tap one channel to pull your blinds/garage door up and another to pull it down without getting off to close it manually. Voice Controls Your Home Compatible with Alexa and Google Home. Wanna turn off the light immediately? Just tell it to do Make Your Dumb Home into Smart with Your DIY Idea 4CHR3 4-gang Wi-Fi Smart Switch & Quick to Access 3 Working Modes Compared with 4CHPROR2, you can access self-locking, interlock and inching mode on APP directly Run 4 Devices Separately - Self-locking Mode Allow you to turn on or off 4 connected lights independently Keeps On for A While, Then Turns Off Automatically - Inching Mode 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