How to use Phone as a Speaker for PC

You can use a phone as a speaker and microphone for a Windows 11/10 PC with a free app called AudioRelay. Learn how to set it up!
Techno-Science.net

How to Use an Android Tablet as a Second Display for Your Windows PC

spacedesk is a free program that turns an Android tablet into a portable display for your Windows PC that you can easily carry with you anywhere. You can use it when you need extra screen space or ...
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How to Use Windows 11 as a Bluetooth Audio Receiver

To use your Windows 11 PC as a Bluetooth speaker, head into Settings > Bluetooth, turn on "Bluetooth," click "Add Device," and pair your device. Download and install the Bluetooth Audio Receiver app ...