EF Air Pro 4 Doesn’t Block Noise in Phone Calls

I have new EFAP 4.

My first phone call was very disappointing and my caller asked me to please use some other means to talk to them because I sounded like underwater.

They also had to hear the noise around me although I had ANC at Strong setting.

I thought EarFun was top affordable earbuds, but did not know that this was the case.

Is this something that can be fixed or should I not bother with EarFun Air Pro4?

Thank you,

Haz