Sorry to hear your headphones are not working properly. We know this is frustrating, and we hope to make up for this inconvenience.
In this case, you are more than welcome to try the different charging cable or adaptor to see if it helps at all.
If the issue still persists, the issue you experienced is very unusual, Anker will help you with the 18-month warranty. Please don't hesitate to contact us at firstname.lastname@example.org by detailing your order number and the problem you come across. We will reply you within 24 hours.