The problem with the noise cancellation function is too bad and You need to announce release notes for new firmware

Hi friend, 

Thanks for choosing EarFun. Sorry for the inconvenience caused. 

Could you please send us your order number to check? Does this issue occur after you update the earbuds to the latest firmware? Please email our customer service team via service@myearfun.com. 

EarFun provides an 18-month warranty for every product. Your satisfaction is always greatly important to us.

Sincerely,

EarFun Customer Service Team

No, I want you to answer me directly about this right here

I am facing the same issue.  You "should" provide changelogs of your firmware updates. Also, I am interested to know if LC3 codec is enabled. I bought this earbuds for two reasons,

1. The noise cancellation, which is by no means near the claimed 43db mark

2. The LC3 codec: I feel cheated that the codec is not present in the firmware. Can you at least provide an expected ETA on which you will provide this codec as default? No, I don't want to flash some old firmware using some questionable application, as described here in a thread.

At least you should provide support for LDAC.