Direct answer
Many Bluetooth headsets switch from high-quality stereo playback to a bidirectional hands-free profile when the microphone is used. That behavior is a profile limit, not necessarily interference.
What this covers
- The observed symptom matches this record
- Customer-accessible settings, connections and external components
- Diagnosis before reset, deletion or component replacement
What it does not cover
- ×A model-specific error code with a different documented meaning
- ×Internal electrical, battery-cell, gas, refrigeration or sealed-component repair
- ×A guarantee that every model exposes the same control label
Capture the exact symptom
ReversibleCompare music before and during microphone use and inspect the selected input/output devices.
Run the smallest isolation test
ReversibleUse the laptop microphone with stereo headphone output, or use a wired/USB headset that supports the required call quality.
Correct only the proven cause
ReversibleSet the call app to the chosen microphone and stereo output; remove duplicate legacy device entries only if needed.
Verify before changing anything else
ReversibleJoin a test call and confirm both sides hear clearly at the expected quality.
Evidence ledger
Sources behind this answer
Visible sources support the visible claims. Home Product Support records the publisher, the fact used and the review date; community reports can suggest an issue but do not become a published fact on their own.
Exact questions
Common follow-ups
What should I check before resetting anything?+
Compare music before and during microphone use and inspect the selected input/output devices.
What is the safest isolation test?+
Use the laptop microphone with stereo headphone output, or use a wired/USB headset that supports the required call quality.
When should I stop troubleshooting?+
Do not reinstall Windows for a repeatable Bluetooth profile change.
Answer for the exact device and software version shown above.