Hi MarcelPérez,
Thank you for posting in Microsoft Community.
I understand that you'd like to use the Surface Headphones 2 with a great sound quality on the microphone.
Just to confirm few questions:
- May I know what device do you use your Surface Headphones with? Is it a Windows 10 device also?
- Have you installed the Surface Audio app already and set it up with your Surface Headphones 2? (Set up Surface Headphones)
Please perform the methods below:
- Check if the correct audio profile is selected. Click the Audio icon on your Taskbar (if Windows 10) > Select Headphones (Surface Headphones Stereo) if listening to music > Select Headset (Surface Headphones Hands-Free) if making phone calls
- Check the Equalizer if it is changed to a setting that may caused the issue. Open the Surface Audio app then choose Equalizer > Under the Equalizer, try to change the preset to Flat.
- Try turning off the headphones then back on.
- Pair with another device. Please try to pair the Surface Headphones with another host device and see if the issue still occurs.
Let me know how this goes.