Headphones & earbuds

Headphone or earbud microphone isn't working on calls

This usually means the wrong microphone source is selected on your device, the mic is covered, or there's debris blocking the mic port rather than a broken headset. Checking the input device setting first fixes most cases.

Difficulty
Easy
Time
10–20 minutes

Symptoms

  • Other person can't hear you during calls or video meetings
  • Mic works for voice assistant but not phone/video calls
  • Muffled or very quiet mic audio
  • Mic worked before but stopped after an update

Likely causes

  • CommonWrong microphone/input device selected on the phone, computer, or appSome apps default to the built-in device mic instead of the connected headset's mic.
  • CommonMicrophone opening blocked by debris, a case, or how the headset is wornA blocked mic port physically prevents sound from reaching the microphone.
  • PossibleApp-specific microphone permission not grantedSome apps require explicit microphone access permission that may have been denied.
  • PossibleBluetooth headset connected for audio but not for calls (missing hands-free profile)Some Bluetooth connections only support music streaming (A2DP) and not calls (HFP).
  • Less commonDamaged microphone component in the headsetPhysical damage or wear on the microphone itself can cause permanent failure.

What to do

  1. In your phone or computer's sound settings, manually select the headset as the input/microphone device, not just the output.
  2. Check the app you're using (Zoom, Teams, phone dialer) for its own separate microphone selection setting.
  3. Inspect the microphone opening on the headset for visible debris and gently clean with a dry brush.
  4. Confirm the app has microphone permission enabled in your phone or computer's privacy settings.
  5. Disconnect and reconnect the Bluetooth headset, or forget and re-pair it, to refresh the connection profile.
  6. Test the microphone with a voice recording app to isolate whether it's a call-specific issue or the mic entirely.
  7. Try a different phone or computer to determine if the issue is the headset or the original device.

Tools and parts

  • Soft-bristled brush

When to call a pro

If the microphone fails a standalone voice recording test on multiple devices after cleaning, the mic component has likely failed and the headset needs replacement or warranty service.

Safety

Generally low risk

Generally low risk for a careful person. Stop if anything looks different from what this guide describes.

Related guides

Operator provides AI-generated troubleshooting information. It can be wrong. For safety-critical, electrical, gas, structural, medical, automotive safety, or other high-risk problems, consult a qualified professional.