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ESP8266 IoT Wifi Button - Home Automation - openHAB Community
GoveeLife Wireless Button Sensor
GoveeLife Wireless Mini Smart 6 Button Sensor, Group Control Multiple Devices, Versatile Control Button, Battery Powered, Supports Most Govee Smart Products - Amazon.com
Amazon.com: Iot Wifi Button
Smart Button - Programmable wireless button
AJAX Button Black - Wireless Panic Button / Remote Control for Scenarios - MEGATEH.eu Online shopping EU
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
Amazon.co.jp: 2 Button Wireless Remote Control / Accessories / Remote Control Switch Press 1/2/3/4/6/8/10/12/15/16 Keys : DIY, Tools & Garden
Make an Easy Button Wireless : 6 Steps - Instructables