Hello guys. I am not a gaming person, but I am a mom of the son who is. My story is very common, I beleive: I was cleaning his desk, and somehow cleaned it together with USB dongle. No need to say how sad is my son, he loves his headphones so much. So I am looking for your help and advice what I can do to make these headphones usable again. I have contacted local servcie desk, they say they can do nothing. But I still hope that I can correct my mistake somehow. It was quite a noticable investment for our family, we cannot afford right now to buy another one. Please help. Thank you