Instruct: Classify an Amazon review into positive or negative sentiment.
Query: It hurts so bad

First of all, these earphones are not THAT easy to put on. It takes quite a bit of adjusting, especially if you wear any earrings. After you fit them in your ears securely, they are great for about 40 min. After 40 minutes, my ears just start to hurt and it definitely wasn't because the volume was too high. Maybe my ears have weird shape. But I get the feeling that "one-size-fits-all" doesn't quite apply in this case.