Connect Your Phone as a PC Microphone Using WiFi or USB

You can use your phone as a microphone for your PC in three main ways: a wireless app over WiFi, a USB cable connection, or Bluetooth. The WiFi method is fastest to set up and works from across the room. USB gives you the most stable connection but requires a cable. Bluetooth works wirelessly but can have audio lag, making it less reliable for live calls or recording.

The WiFi approach uses a free app on your phone that streams audio to software on your PC. You read the app, connect both devices to the same WiFi network, and the PC picks up your phone's microphone as an input device. No cables, no drivers to hunt down, and you can move around freely.

For USB, you plug your phone into your PC with a standard charging cable, enable USB audio mode on your phone, and your PC recognizes it as a microphone within seconds. This method works even if your WiFi is spotty.

Key Takeaways

  • WiFi apps like WO Mic or Microphone are free and let you use your phone wirelessly without cables or complex setup.
  • USB connection requires only a charging cable and works when ready on Windows and Mac without installing extra drivers.
  • After connecting, you must select your phone as the input device in your PC's sound settings or in the app you are using to record or call.
  • WiFi works best for stationary setups; USB is more reliable for video calls or recording where lag matters.
  • Test your audio level before recording or joining a call to make sure your phone's microphone is loud enough.

Set Up a WiFi Connection Using a Microphone App

read a free microphone app on your phone. WO Mic (available for Android and iOS) and Microphone (Android only) are the most common choices. Search for either name in your phone's app store and install it.

On your PC, visit the app's website and read the PC software. For WO Mic, go to wolicheng.com and read the Windows or Mac version. Install it the same way you would any other program. Launch the PC software and leave it open.

Make sure both your phone and PC are connected to the same WiFi network. Open the microphone app on your phone. You should see a list of available PCs on your network. Tap the name of your PC. The app will connect, and your phone's microphone is now streaming to your PC.

In your PC's sound settings, open the input devices menu. On Windows, right-click the speaker icon in the system tray and select "Open Sound settings," then scroll to "Input" and look for the app name (such as "WO Mic"). On Mac, go to System Preferences > Sound > Input and select the app. Your phone is now your PC's microphone.

Connect Your Phone via USB Cable

Plug your phone into your PC using the charging cable that came with your phone. On your phone, a notification may appear asking how you want to use the USB connection. Tap "File Transfer" or "Transfer Files" — not "Charging Only."

On Android, go to Settings > Developer Options and turn on "USB Audio Routing" if that option exists (it varies by phone model). On iPhone, no extra step is needed; just plug it in.

On your PC, open Sound Settings. On Windows, right-click the speaker icon and select "Open Sound settings," then go to Input. On Mac, go to System Preferences > Sound > Input. Your phone should appear in the list. Click it to select it as your microphone.

Test the connection by speaking into your phone's microphone and watching the input level bar in Sound Settings. It should move when you talk. If nothing happens, unplug the cable, wait five seconds, and plug it back in.

Select Your Phone as the Input Device in Apps

After your phone is connected, you need to tell each app to use it. In most calling or recording software, look for a settings menu or gear icon. Find the section labeled "Audio," "Microphone," "Input Device," or "Sound."

A dropdown menu will show all available microphones. Select your phone's name or the app name (if using WiFi). For example, in Zoom, click Settings > Audio > Microphone and choose your phone from the list. In Discord, go to User Settings > Voice & Video > Input Device and select it there.

Some apps, like OBS Studio for recording, require you to add an audio input source. Click "Add Source," select "Audio Input Capture," and then choose your phone from the device dropdown.

After selecting your phone, test it before you record or call. Most apps have a "Test Microphone" button. Speak normally and check that the app detects your voice. Adjust your phone's microphone position if the sound is too quiet or too loud.

Troubleshoot Connection and Audio Problems

If your phone does not appear in the input device list, restart both your phone and PC. On Windows, also restart the audio service: press Windows Key + R, type "services.msc," find "Windows Audio," right-click it, and select "Restart."

If you are using WiFi and the connection drops, make sure both devices are still on the same network. Move your phone closer to your router if the signal is weak. WiFi apps are sensitive to interference; if you have many devices on your network, the connection may stall.

If your phone's audio is too quiet, check the microphone level in your PC's sound settings. On Windows, in Sound Settings under Input, look for "Microphone" and click "Volume level" to see the input meter. Speak into your phone and watch the bar rise. If it barely moves, your phone's microphone may be blocked by a case or your fingers. Clean the microphone hole and try again.

If you hear echo or feedback, you are likely hearing your own voice played back through your PC speakers. Mute your PC's speakers or use headphones instead. If the problem persists, lower the microphone volume in the app's settings.

WiFi vs. USB: Which Method to Use

Use WiFi if you want to move around, do not have a USB cable handy, or prefer a wireless setup. WiFi apps are free and work on most phones. The downside is that audio can lag by half a second or more, which makes real-time calls feel unnatural. WiFi also depends on your network stability; if your router is far away or overloaded, the connection may cut out.

Use USB if you are recording, doing a video call, or need the most reliable connection. USB has almost no lag and does not depend on your WiFi. The cable limits how far you can move, but the audio quality and stability are better. USB also works if your WiFi is down.

For casual video calls or voice chats, either method works. For podcasting, streaming, or professional recording, USB is the safer choice. If you are doing both, set up both methods and switch depending on what you are doing.

Frequently Asked Questions

Will using my phone as a microphone drain its battery?

Yes, streaming audio over WiFi or USB uses more battery than normal. If you are using WiFi, keep your phone plugged in during long sessions. USB actually charges your phone while you use it, so battery drain is not a concern with that method.

Can I use my phone microphone and my PC microphone at the same time?

No. Your PC can only use one input device at a time. You must choose which one in your sound settings. If you want to switch back to your built-in microphone, go to Sound Settings and select it from the input list.

Does my phone have to be unlocked while I use it as a microphone?

For WiFi apps, yes — the app must stay running and your phone must stay awake. For USB, no — you can lock your phone and it will still work as long as the cable is connected.

What if my phone does not show up in Windows sound settings after I plug it in?

Try a different USB cable; some cables only charge and do not transfer data. Make sure you selected "File Transfer" mode on your phone, not "Charging Only." If it still does not appear, restart your PC and try a different USB port.

Can I use my phone as a microphone on a Mac?

Yes. Both WiFi apps and USB work on Mac. The setup is the same: read the app or plug in the cable, then select your phone in System Preferences > Sound > Input.