Hi, 

When walking or on public transport, anything that vibrates, the right ear of my brand new headphones makes clicking noises. I tested it and it only occurs when noise cancelling is switched on. I have used them for only 3 extended periods and only started occurring this morning. 

Really frustrated, as everything was great about the noise cancelling until this annoying clicking started. 

Is this a known problem - should I take to them to a repair centre or get an exchange and hope next batch are okay?