Hello, thank you for your suggestion, on the basis of which the supplier contacted us and would like to respond below.
"The glass is designed to be case-friendly, which means that its edges are flush with the active part of the display so as not to block the speaker. At the same time, the part of the glass that covers the speaker is not adjacent to the display to avoid distorting the sound. It is possible that it was a defective piece. We would be grateful if you could contact us at
[email protected] via our customer support team, where we would be happy to resolve any issues you may have by sending you a replacement product. "
Thank you and have a nice day, Ondřej - Alza expert