The Volantis True Wireless Earbuds feature Bluetooth 5.0 technology to automatically pair to your device of choice. Simply remove the True Wireless Earbuds from the case and they'll automatically power on and sync to each other. When you're finished using your earbuds, place one or both back into the case and they'll automatically power off and begin charging. The charging case is made with an antimicrobial material and features a built-in UV-C light positioned inside the case, which helps sanitize the earbuds while charging. This UV-C light kills 99% of bacteria and virus microorganisms tested. The case will charge the earbuds 2.5 times.