Why are the two speakers of the POCO F7 Ultra different in volume?

The POCO F7 Ultra is equipped with dual stereo speakers, and there will be a stereo centering effect when the phone is placed horizontally. The whole machine adopts an asymmetric design, the upper speaker with a two-in-one design of the receiver and speaker, and a separate BOX for the lower speaker. If you feel that the volume of the upper and lower speakers is inconsistent, please first rule out whether the phone's film, leather case, etc., are blocking the receiver.
Secondly, confirm whether the position of the phone speaker is dirty. You can try to wipe it gently with a dust-free cloth to remove it. If you are not satisfied with the stereo centering effect when the screen is horizontal or vertical, you can search for [Hearing] in [Settings] and slide on the [Audio balance] setting interface to adjust the stereo centering effect.