Why does the POCO F7 Pro leak sound while calling?

Thank you for your support of Xiaomi products and we apologize for the trouble this has caused you. The POCO F7 Pro adopts a two-in-one solution between the upper speaker and the receiver.
If you notice this phenomenon while calling, please refer to the following information:
1. The sound leakage issue during calls on your phone is due to how the phone's speaker system works. The device adopts a two-in-one solution between the upper speaker and the receiver. To better utilize the performance of the upper speaker, the volume is relatively large. During calls, if the volume is set too high, the sound will escape from the speaker, causing the leakage you hear;
2. When you are on a call, you can pay attention to adjusting the volume button to reduce the sound leakage;
3. You can also wear earphones while calling. Thank you for your support and understanding.