Few complaints

I think it's a good product. These were the earphones sold with the Xperia P at the base and I love his qualities as good bass as we like, not aggressive highs and a powerful and clear sound that never saturates. With a life span of more than a year I think it's just an excellent quality / price ratio. (Just over 3 cents on a year of use)
And we must say that this is Sony, so not anything either ...