Review on 🔊 ReHisk Portable Computer Speakers - External 15.6", 1920X1080P, 60Hz, Built-In Speakers, Blue Light Filter, Flicker-Free, HD by Carlos Hegie

Since I'm using three separate monitors, I can't adjust the contrast or brightness here, so highlighting text or buttons that are a similar color to the background doesn't stand out against the surroundings.

If the same window is transferred to another monitor, the picture is completely different. I've tried asking the manufacturer and seller how to adjust the settings as it's greyed out and haven't had a reply yet.