Review on EVICIV Portable External Computer Freesync Speakers: 16.5" 1920X1080 EV15602 HDMI - Enhanced Audio for Ultimate Computing Experience by Aaron Poinson

I was intrigued by the marketing and the great reviews. I sent it back after only a few hours of use. Its purpose was to use the second screen for daily work (spreadsheets, documentation, email, etc.). I was hoping for something with the size and quality of the MacBook Pro's screen. The 4K pixel density was excellent. No problem. The uniformity of color and brightness was a far cry - a solid background would look more like a subtle gradient. In addition, colors and brightness change drastically with just a few centimeters of head movement. If your main purpose is to play games or watch movies, this screen could be for you. If you're looking for a portable second screen in a pinch, this might be tolerable. If you're looking for a second screen for extended use and you care about color and brightness consistency, look elsewhere.