The grammar upstairs is scary. Pretend to read Chinese and answer in English. The price you said is a bit embarrassing. Good sound quality is generally above 2000, and ie8 on the first floor is about 2200. Se530 with good appearance and sound quality should be repaired both inside and outside. Um3 is comfortable to wear and has a balanced sound quality, but its workmanship is old. Ie8 has a good sound quality, but a moderate shape. That depends on your own preferences. In 2000, tf 10. Dai's great tragedy, junior four, Dai's work tragedy. Ie7 may satisfy you.