Hello, this phone features a stereo design: both the top and bottom speakers use large-amplitude drivers, combined with an integrated airflow linkage technology across the device to deliver an outstanding loudspeaker experience. However, at high volumes when playing low-frequency audio, the screen may exhibit slight vibration. This is a normal physical phenomenon and will not affect the phone’s lifespan. You can also lower the volume to reduce the screen vibration. If you have any other concerns, please contact us again.
