A headset that plays music perfectly but leaves everyone on the call hearing silence is the classic case of a bluetooth headset mic not working in Windows 11. Nine times out of ten the headset is connected in stereo-only mode, or Windows is listening to a different input. Switch the input to the Hands-Free entry in Sound settings, check the privacy toggle, and test again.
Quick Answer
Open Settings, System, Sound, and under Input pick your headset's Hands-Free entry, then watch the volume bar while you talk. If it stays flat, switch on microphone access under Settings, Privacy and security, Microphone. If that fails, remove the headset and pair it again, which clears a stuck profile in most cases.
🎧 Why the speakers work but the mic stays silent
Bluetooth headsets use two separate profiles. A2DP carries stereo music one way, and the Hands-Free profile (HFP) carries your voice back to the PC. Windows 11 can connect only the music profile, which gives you great sound and a dead microphone.
Open Settings, Bluetooth and devices, then Devices, and look at your headset entry. In Sound settings you should see two items for the same headset: a Stereo output and a Hands-Free one. If the Hands-Free entry is missing, Windows never completed that part of the pairing.
Quick checks before you dig deeper
- Make sure the headset's own mute button or switch is off.
- Charge it above roughly 20 percent, since some models drop the mic link when the battery is low.
- Close any call app that might already be holding the device.
🔧 Set the right input and fix permissions
Go to Settings, System, Sound, scroll to Input and choose the headset. Speak normally and watch the bar under "Volume". Tick the Test your microphone option if you see it. If Windows hears you here, the headset is fine and the problem sits in the app.
Next, head to the Microphone page under Privacy and security in Settings. The master access toggle and the apps toggle both have to read On. Browsers add a second layer, so click the padlock beside the address bar and allow the microphone for that site.
Inside Discord, Google Meet or a game, select the same device manually. Apps do not always follow the Windows default, and a wrong choice there looks exactly like a broken headset.
When Windows keeps switching devices
From the taskbar speaker, go through to the classic Recording tab via More sound settings. Right-click your headset, choose Set as Default Device, and also Set as Default Communication Device. That stops a webcam mic or laptop array from stealing the slot.
🔄 Re-pair the headset and update the driver
If the settings look right and the bar still does not move, remove the headset. In Settings, Bluetooth and devices, click the three dots next to it and choose Remove device. Hold the headset's power button until it enters pairing mode, then add it again.
Next, open Device Manager, expand Bluetooth and Sound, video and game controllers, and look for a yellow warning mark. Right-click the Bluetooth adapter and choose Update driver. If you installed a recent Windows update just before the fault began, the adapter driver is the likely culprit.
Restart the PC after the driver change. A full restart, not a sleep and wake, rebuilds the Bluetooth stack and sorts out many stubborn cases.
📶 Interference, adapters and a better fallback
Bluetooth shares the 2.4GHz band with Wi-Fi routers, microwaves and cordless gear. In a South African flat, res room or digs where a dozen networks overlap, a distant PC can drop the voice link while music still limps along. Sit closer, move away from the router, or plug a USB Bluetooth adapter into a rear port with a short extension cable.
Remember too that the microphone link works at a lower call quality than stereo. If you stream or record, a wired headset or a dedicated USB mic skips the trade-off. You can browse streaming essentials for microphones at roughly R200 to R2,000, and webcams if your video call setup needs an upgrade at the same time.
Frequently Asked Questions
Why does my Bluetooth headset have sound but no mic?
It is usually connected only in stereo mode. The microphone needs the Hands-Free profile, so choose the Hands-Free entry as your input in Sound settings and speak to confirm the bar moves.
How do I set the default input in Windows 11?
Open Settings, System, Sound, then pick your headset under Input. Make the same choice inside Discord, Meet or any other app, because many apps keep their own setting.
Why does audio quality drop when the mic turns on?
Bluetooth switches to a lower-quality call profile once the microphone is active. This is normal behaviour, and a wired headset or USB dongle avoids the trade-off entirely.
Do apps need permission to use the mic?
Yes. Windows has a privacy page for microphones, and both of its switches need to be on. Browsers also ask per website, so allow the site through the padlock icon.
Should I remove and re-pair the headset?
Yes, it often clears a stuck profile. Remove the device in Bluetooth settings, put the headset into pairing mode and add it again.
Could the Bluetooth adapter be the weak link?
It can. Cheap adapters handle hands-free audio badly, and a crowded 2.4GHz space adds dropouts. Update the driver or try a different adapter.
Ready to get a mic that just works with your PC?
Browse the streaming essentials range at Evetech for microphones and accessories that plug straight in, with no profile juggling.