DeviceDIYTo test Bluetooth headphones, connect them as your active output, play left and right test tones, and confirm which ear hears each one. This checks your listening path, not automatic physical speaker detection.
How to test and troubleshoot
Connect headphones before testing
Pair the headphones and choose them as the active system output. Some devices switch automatically to another output when calls begin.
Set a safe volume
Start low and gradually increase to a comfortable listening level. Avoid prolonged loud test audio.
Test left and right channels
Open the DeviceDIY Speaker Test and play the left tone, then the right. Listen with both earpieces worn correctly.
Test stereo and application output
Play both channels. If it works in the browser but not in a meeting app, check that app’s output selection and Bluetooth profile.
Recheck after reconnecting
Disconnect and reconnect the headphones. Confirm output selection again, especially if other Bluetooth devices are nearby.
What common test results mean
Nothing plays
Check Bluetooth connection, output selection, system mute and browser sound settings.
Audio only in one ear
Test another source, swap earpieces if possible and inspect mono audio / balance accessibility settings.
Sound degrades during a call
Bluetooth headsets can change audio profiles when the microphone activates; investigate the selected headset mode.
Important: A browser test shows the events or signals the browser receives. It does not independently certify hardware condition, software compatibility, data security or the cause of every fault.
Frequently asked questions
Does a generated tone mean headphones work?
No. You must personally confirm hearing it through the intended output.
Can this test measure headphone frequency response?
No. A browser tone is not a calibrated acoustic measurement.
Technical references
For settings that vary by operating system and browser, refer to official guidance:
Ready to check your device?
Run the matching browser test and see what it actually detects.