After you successfully connect for the first time, this Bluetooth earbud only need to open the charging case, and it will automatically turn on and quickly connect with your device within 100 feet.a touch point located on the side of the headphone jack that can control volume, switch songs, play/pause, answer/reject calls, and activate/deactivate Siri.a single earphone can be used for five hours at a time, and the charging case can provide four charging opportunities for the earphone when fully charged, providing a total of 50 hours of usage time.