Why does the Xiaomi 15's earpiece slit leak light, or have a visible white line?

Question

Accepted Answer

Thank you for your support of Xiaomi products. The Xiaomi 15 is designed with precision engineering to ensure optimal functionality and acoustic performance. Under low ambient light conditions, light can reflect through the earpiece slit, making a faint glow or a visible white line noticeable to the naked eyes. This phenomenon occurs due to the way light interacts with the materials and openings of the earpiece and is a common optical effect rather than a defect. It does not impact the device's performance, durability, or audio quality. Please feel confident in using your Xiaomi 15, and we appreciate your understanding and support.