MOES Touch Wall Single Live Wire Smart Switch,No Neutral Wire Needed, 2.4GHz WiFi RF433 Light Switch Works with Smart Life/Tuya App, Alexa and Google Home, Single Pole 110V, Black 1 Gang - -
Samsung Support: How to use Smart Switch for Samsung Galaxy to Samsung Galaxy - YouTube
How to Use Samsung Smart Switch - YouTube
Smart Switch | Apps - The Official Samsung Galaxy Site