In the first time, take out 2 earbuds from charging case or any single earbud, and search [S8] to connect with your device. After it, when take out 2 earbuds from charging case or any single earbud from charging case, they will connect automatically. Siri: Triple-click one earbud to wake Siri up & One click to turn off.
https://www.amazon.com/Wireless-Bluetooth-Waterproof-Headphones-Android-Black/dp/B085VX9JY7