Thank you for your joining the Jaybird community. Sorry for replying in English but I'll make sure to help you as much as I can.
Using google translate, I understand that your concern is about your Jaybird Run's charging issue.
Kindly try using a different power source/charger and/or a different USB cable. A pulsing green LED on each side means it is charging, solid green light when fully charged. It is recommended to use 5V/500mA-1A charger for 2.5 hours only.
It would also help to ensure that the lid of the charging case is securely closed and the charger ports and prongs align accordingly. Kindly advise if this solution is helpful.
Feel free to reach out back to us by replying to this post or contacting our other support channels at https://www.jaybirdsport.com/en-us/support.html
Jaybird Customer Experience
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