Review on Portable Touchscreen UPERFECT Upgraded 1920X1080 15.6", 60Hz, Built-In Speakers, Flicker-Free, Ultrawide Screen, MDS-156G16, HD by Bronson Omaha

Can't really notice HDR but at least it works fine with my Samsung Galaxy S20 with Dex AND my Windows 10 computer as an extended touch display on the monitor itself rather than simulating taps on the main monitor. I'm surprised so few people are using Windows 10 these days: Go to Control Panel > Tablet PC Settings > select Touchmonitor > click Settings > press Enter so the text goes to the touchmonitor > then tap the touchscreen . This allows you to display touches on a portable monitor when using it as an extended monitor. I see many complaints that it ONLY works if you have a mirror image of the primary monitor or make a portable monitor the primary monitor. THIS HAS NO RELATION TO THE CASE. Follow the instructions above and you will be a happy camper.