Hi isami05,
Good day,
For the recording distorted problem, could you record a short sample for us to check?
To share videos, please upload to ASUS WebStorage (https://www.asuswebstorage.com/navigate/ )or any other cloud storage website, and share the link with us.
For bluetooth problem, could you tell us the brand and model of your device?
Have you checked with different bluetooth headphones?
Thank you!