Should be pretty easy to replicate the mixing capabilities of those Microsoft headphones.
QR-Code Dossier
Excellent library / documentation:
https://github.com/nayuki
https://www.nayuki.io/page/qr-code-generator-library
Really poor integration on any popular OS / platform.
Surprisingly lack of quality 3rd party solutions with no clear leader.
Win32
Installer 7.7 MB
CodeTwo QR Code Desktop Reader & Generator
Windows store
IOS
MacOS