RunLessWire - The Original Self-Powered (NO Batteries) Wireless Light Switch & Receiver Kit No WiFi Needed DIY, Remote 150+ft RF Range - 4 Way: 1 Receiver, 3 Switches - White - Amazon.com
Lutron Caseta Switch & Remote-Wireless Control | 3-Way Switch | Compatible with Alexa, Apple HomeKit, and the Google Assistant | P-PKG1WS-WH | White - Amazon.com
Lighting Switch 10A Us 90-250VAC 2 Way 3 Way Single Pole Relay Switch Tuya APP Wireless Remote Control Smart Home Automation - China Smart Home, Alexa | Made-in-China.com
MOES Mini DIY WiFi Smart Light Switch Module|1 Gang WM 104 MS Relay
RF Remote Control Switch 1/2/3/4 Way ON/OFF 220V Wireless Receiver Lamp Light | eBay