Missing fit

Headphones came neatly packed in with us. Product makes firstonce a high-quality impression. Was connected in a few minutes. One can volume, vibration and Mute to set or input and display. Once you have the headphones worn but a few minutes, the edges of the inner membrane make very unpleasantly. He was tested by 3 people, it was not on the ears!
The sound of the product was acceptable. Since the plug on controler found no firm hold, it always came back to Kratzgeräuchen.
Then the headphones had to be sent back.