Aukey ep t25 working good on the phone but not on PC

Hello my brand new aukey ep t25 are working percetly when paired to my phone; but they are not working when i try to use them on my PC: the audio is very bad, i can listen 1 word out of 10.
I don’t understand if it’s an issue about bluetooth, about the earphones, about the PC or what…
can you help me?

thank you

did you get any resolution to this

yes, returning the earphones, and buying another brand…