I bought this earphone and with less than 4 months of use it stopped working. It only works when it's plugged to an energy. The battery probably is not working. And what makes me more annoyed it is that one of the reasons that I bought this earphone is because skullcandy says that the warranty is to all the world, unfortunately I'm from Brazil, and this warranty does not apply to my country, so I'm having hard a problem with it, I have a defective useless product for more than 3 months. So I don't recommend this brand and product. User's recommendation: Don't buy any product of this brand.