WiFi RF433 Smart Wall Switch No Neutral Wire 2/3 Way - China Switch No Neutral, Switch Alexa | Made-in-China.com
GE CYNC Smart Switch, No Neutral Wire Required, On-Off Paddle Style with Bluetooth and 2.4 GHz WiFi, Alexa and Google Home Compatible without a Hub (Packaging May Vary)
Smart Switch No Neutral Wire in Your Home | The IoT Pad
Smart WiFi Light Switch HACK - NO NEUTRAL WIRE, NO PROBLEM - YouTube