A:Answer Hello! We are sorry to hear you are having problems with one of your earbuds. If you are experiencing audio issues, we recommend rebooting your phone and re-pairing the headset, testing with another mobile phone can also help us isolate the problem. We also recommend checking if there are any firmware updates with the BackBeat application. If the same issue persists, then it could be a problem with the headset and it will be best to replace it. Remember this unit does have a limited warranty from the date of purchase and you can request a replacement directly through our official website. If you require further assistance, please don't hesitate to contact our Customer Care Team at 1-888-363-0726.