Cowon Adds DAB to Flagship PMP You are done! What can I do? Headphones have very small and delicate speaker drivers inside them. Sometimes the speaker driver may get moved slightly out of alignment because of air pressure when you insert them. Try the above steps a couple times before calling Acer COWON D2 or Acer COWON D2 your headset. It has been found that many customers who think they have a defect actually just need to clean or blow[…]
