I emailed Sennheiser, opened a case, and within a week they shipped me a new replacement pair. However, most times I use this microphone with my usb camera. The headset can even operate wired if the battery is about to die, almost seamlessly! The cord is nice and long but not so long that it gets in the way. So I decided I?d crack them open to see if they had some sort of waterproof cover that was ruining the sound. Slightly big, but thats ok since she will grow into them. This thing has no stability, pretty much as good as a grocery bag. , West Marine, Boat US, etc. I mark 4 stars because they run one size small. I should have known when I realized you were getting 2 headphones for $10 bucks.