The headphones do not have good sound quality at all. However, they have detachable ear hooks which, although not sold separately, can be used with any other headphones with a common round cable (not the flat one). So I used them with other better headphones that I have and they work perfectly fine. What I wanted was for the headphones not to fall off during exercise and there are no good in-ear sports headphones with hooks at a good price. They also come with an extra set of foam ear cushions, which are not available elsewhere, but can be used with all in-ear headphones and are very comfortable. For these reasons, they are worth their low price, not for the headphones themselves.