There must be something wrong with this. The earmuffs are not so smooth. The earmuffs are sewn three times. One circle outside, one circle in the middle facing the ear, and one circle inside. It has a sewing opening on it. It's soft, and it bounces slowly when you squeeze in. You can compare the advertising pictures. Besides, I have never seen a big steamed bun with a red line. All black. I bought the Bluetooth version. The wired version is the same as the Bluetooth version. And when the real big steamed bread is put, it is impossible not to touch the earmuffs. Moving to any position is contact.