Test waterproof headphones

I purchased this product which gave me full satisfaction for a month .. .. problems and false contacts then ... kaput!
I've stumbled on a failed model ...? I do not know. but before it falls in the harbor it fully satisfy me both in ergonomics at the level of sound ... and god knows it's rare in this kind of article to run is compromised his / ergonomics that can satisfy ( I said that I practice sport na crawl swimming and backstroke).