Which earphone is good? . I want to buy it, and I don't know which one to buy.

I like the female voice SQ5 ES5 SQ5 very much, which is better than ES5 and comfortable to wear. SQ5 also performed well in light music.

The sound quality of ES7 and K450 is better than SQ5 and ES5, but the female voice is not as good as the first two. The first two are very good, such as rock and roll. If the landlord wants to go out of the street and stay at home, choose one of K450 and ES7, and just pick one that looks like it. You can audition ES7 and K450 if possible.