@b2109455 I have two Arctic P311 (one is ~3 years old and one is ~5 years old). For both, the quality of the microphone is not sufficient to talk with somebody. I can only use A2DP with it, which is perfectly fine for me (most of the time).
Can you practically talk in an understandable manner to someone, using the microphone of the P311? How old is your P311 (there's multiple generations with same name)?
Off-topic in terms of this issue:
@b2109455 I have two Arctic P311 (one is ~3 years old and one is ~5 years old). For both, the quality of the microphone is not sufficient to talk with somebody. I can only use A2DP with it, which is perfectly fine for me (most of the time).
Can you practically talk in an understandable manner to someone, using the microphone of the P311? How old is your P311 (there's multiple generations with same name)?