When using a larger volume to play music and videos, the speaker will be at a high volume for a long time, which will increase the operating power consumption of the mobile phone speaker, causing additional power consumption and heat. This is common Please don’t worry about power consumption and heating.
It is recommended to appropriately lower the external amplifier volume or temporarily use headphones. Try to use high-volume external amplifiers in an environment with good heat dissipation (such as indoor air-conditioning environment).