acegoo Kinetic Light Switch, Self-powered Transmitter No Wiring No Battery No WiFi Required, Work with Receiver Remote Control house Lighting & Appliances (Switch Only) - Amazon.com
Tuya Smart Life WiFi Switch with RF Kinetic Self Powered Remote Control Wireless Switch , Alexa Echo Google Home Voice Control - Price history & Review | AliExpress Seller - LoraTap Official Store | Alitools.io
Inside a kinetic self-powering remote switch - YouTube
Zemismart Alexa Echo Google Home Mini Voice Control Switch No Need Battery Wireless Remote Control Suit for Halogen Bulb Ceiling Fan
acegoo Wireless Lights Switch Receiver, Signle Pole Controller Works with Kinetic Switch to Remote Control Light Fixture On/off, AC85-265V Input 10 Amps (Receiver Only) - Amazon.com