in reality i give these a 4.5 since sweat destroy they . but thankfully I do not buy they for exercise . they have stay in my ear without any discomfort or agitation for several hour . sound be balanced , bass be full , and it come with a array of ear piece to ensure you get a good fit . if you can do physical activity without sweating these make be suitable bud for you , but otherwise you be look at a very short lifespan with wetness on these . though the cord and ear piece be design well the material feel a tiny bit cheap , so you definitely want to take great care of you set . you can easily do so by store it in the small case it come with . overall great sound , excellent design . if they make it in a sturdier material without change touching sound quality , I would happily buy that pair as well .