Whining noise coming from Bose QuietComfort 20
I bought some Bose QuietComfort 20 on Amazon. I registered them on the same day they arrived. The very next day, they started making a high pitched whining noise from one of the earphones. I tried turning them on/off a few time, but nothing happened. They should be under warranty. How can I send them back to Bose? They're currently unusable.
I had my previous pair of Bose QuietComfort 20 for 2 years before they finally gave up the ghost. But in comparison, my older pair had what feels like a much higher quality wire jack lead (slightly rubberised). The new one feels very plasticky and cheap - also disappointing!