Bluetooth 5/Bluetooth LE wireless button enables connected home control at the push of a switch - nordicsemi.com
Battery-free Wireless Dome Button
Wireless Dome Button
Aqara Wireless Mini Switch, Requires AQARA HUB, Zigbee Connection, Versatile 3-Way Control Button for Smart Home Devices, Compatible with Apple HomeKit, Works with IFTTT - Amazon.com
How to Manage Wireless on Lenovo Laptops | Columbia College Information Technology
Mi Wireless Switch (review) - Homekit News and Reviews
A Wireless, Long-range Big Red Button Powered by a Coin Cell Battery
Accessory Smart Button | WiZ
Wireless Push Button -
Smart Button - Programmable wireless button
Make an Easy Button Wireless : 6 Steps - Instructables
Wireless Light Switch Kit, No Battery & Wiring, Waterproof