I will not repeat the comments of the other folks critical of this product.All of their comments are right on. The JVC headphones are junk. Having experienced the same problems of hissing, not working beyond 10', etc. The final straw concerning this product is the fact I can't find a replacement battery. I thought originally the battery might have been the problem. After reading the reviews, I have come to the conclusion that the battery is fine, it's the headphones that are bad.