It is a very good earphone in its price range.
Audio quality is really good, it can play heavy bass music ( not very heavy) . If you are looking for a bass earphone it’s for you.
It have a 8 mm. driver but frequency is low so it is provide good bass, if you like high frequency music then it is not for you. If you’re a gamer ( low quality) , or you like bass you can consider it.