Last updated: August 31, 2026
Applies to: Heavys H1E earbuds
Estimated time: 5–10 minutes
Quick Answer
If your voice sounds muffled or distant, carefully clean the microphone openings and update your H1E firmware. If the issue continues, factory reset the earbuds and test them with another phone or calling app.
Symptoms
Follow these steps if:
- Your voice sounds muffled or distant.
- Other people have difficulty hearing you.
- Your microphone quality is poor during calls.
How to Troubleshoot the Microphone
1. Clean the Microphone Openings
Inspect and carefully clean the microphone openings on both earbuds.
Important: Do not insert sharp objects into the openings or allow liquid to enter the earbuds.
After cleaning, make another test call.
2. Update the Firmware
- Connect your H1E earbuds to your phone.
- Open the HEAVYS App.
- Install the latest available firmware.
- Test the microphone again after the update is complete.
3. Factory Reset the H1E
- Place both earbuds in the charging case.
- Press and hold the case button until the LED flashes.
- Remove the earbuds from the case.
- Remove the H1E from your phone’s saved Bluetooth devices.
- Pair the earbuds with your phone again.
4. Test Another Phone or Calling App
Test the microphone using:
- A different calling or recording app
- Another phone, if available
| Test result | What it may indicate |
|---|---|
| Microphone works in another app | The original app or its microphone permissions may be involved |
| Microphone works with another phone | The original phone or its settings may be involved |
| Poor quality occurs across apps and phones | Contact Heavys Support with the test results |
Frequently Asked Questions
Why does my voice sound muffled?
The microphone openings may be obstructed, or the issue may involve the firmware, connected device, or calling app.
Why should I test a different calling app?
Testing another app helps determine whether the microphone issue is limited to the original app.
Will I need to reconnect after a factory reset?
Yes. Remove the H1E from your phone’s saved Bluetooth devices and pair the earbuds again.
Still Need Help?
If your voice remains muffled or difficult to hear, email support@heavys.com and include:
- Your phone model and operating-system version
- The calling apps you tested
- Whether the issue occurs with another phone
- Whether one or both earbuds appear affected
- Your current firmware version, if available