I have had a good experience with these sports earphone so far . I have been using just a little while but so far so good . They fit my ears really well and they also stay in my ears very well. So headphones I have work really well but they fall out of my ears . This stay in really well. They are really comfortable in my ears. The sound is also very clear . I've not had any problems at all with these headphones . I received these headphones at a deeply discounted price in exchange for my honest opinion.