Sonoff 4CH Pro R2 how does it work ?!

Itead Sonoff 4CH R2 Smart Wifi Switch 4 Gang Smart Home Remote Control Light Switch Works with Alexa Google Home eWeLink APP

SONOFF® 4CH Pro R2 10A 2200W 2.4Ghz 433MHz RF Inching/Self-Locking/Interlock –

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4CHR3/PROR3 - SONOFF Official

Sonoff 4CHPRO R3 Application & Installation Guide (4 Channel PRO WiFi RF Smart Switch)

sonoff 4ch pro r3 smart wifi

SONOFF 4CH R3 Smart Switch,4 independently Channel WiFi Remote Time Switch, LAN Control, Inching/Self -Locking Mode, Works with Alexa,& Google Home Assistant

Sonoff 4CH Pro (R2) Supported? · Issue #2018 · arendst/Tasmota · GitHub

Usage demonstration of Sonoff 4CH PRO R2 to turn lights on and off

Sonoff 4CH Pro - ITEAD Wiki

Sonoff 4CHProR3 Smart Wifi Light Switch 4 Gang, 3 Working Modes Inching Interlock Self-locking RF/Wifi Switch Works With Alexa