Why is the music player sound of the POCO F6 Pro so small when connected to Bluetooth or wired earphones?

If the music player sound of the POCO F6 Pro seems too quiet when connected to Bluetooth or wired earphones, it is due to adjustments made to comply with CE (Conformité Européenne) certification protocols. These protocols are in place to ensure that devices meet safety, health, and environmental protection standards for products sold within the European Economic Area (EEA).
One of the key aspects of CE certification for audio devices is to protect your hearing by limiting the maximum output volume. As a result, the volume output for earphones will be lower than expected to prevent potential hearing damage from prolonged exposure to high sound levels.
This is a normal phenomenon and is intended to safeguard your hearing. If you find the volume too low, you can try adjusting the volume settings on both the phone and the connected earphones. Some earphones also have their own volume controls which can be adjusted for a better listening experience.
If the issue persists and significantly impacts your usage, consider consulting the local after-sales center for further guidance.