Review on Xiaomi Redmi AirDots 3 CN Wireless Headphones, Blue by Linh Chi ᠌

I would like to get information from Xiaomi representatives. How to fix such a problem or exchange for the same headphones that will work properly, or make a refund. Thanks in advance if you help! Has pros: The headphones are good, because I used the same ones before, but gave them to a friend. And because these headphones are good enough, I bought them again. Has some cons After almost 2 weeks of use, the headphones began to play quieter, as if they had made the volume quieter by 3 divisions. Phone poco x3 pro, headphones are fully charged, they were used in adequate conditions, either at home listening to music or in college.