Review on Usparkle Portable Monitor Type C Speakers: 15.6" HD IPS, 3840X2160P, Anti-Glare with Blue Light Filter, Built-In Speakers - GS156AM1 by Mike Meisch

First, it's quite difficult to find a 4K monitor of this size, especially at this price point. Not to mention that it was touchscreen. In recent years, the smallest cheap 4K screen you could get was a 43-inch TV, and when you start looking at touchscreens you might only find 1080p at higher prices. So the great thing about this device is that it's truly portable 4K. Monitor with the added benefit of a touch screen. It was packaged very nicely and you can see all the materials included in the picture. When I turned it on, I saw the trademark "CUUIIC" on the screen. All ports worked properly. I was surprised there are built-in speakers because I didn't see any mention of it. I've seen a headset output option, as well as your mobile device when plugged into a different port. The touchscreen worked without installing drivers on both my PC and Samsung S21 DEX. I was very surprised when the phone recognized the touch screen. On my test PC, I was able to receive HDR over the HDMI cable, but not over the USB-C cable. I believe this is just due to the USBC limitation of the test PCs. A few video clips I played looked really good. They mention PIP or picture by picture in the ad, which usually means from your input sources, but I couldn't get that feature to work, or maybe they just meant it from your computer screen. The screen protector/stand is a nice touch and I'm glad it includes a protective holder. Also, the magnetic stripe on the back is wide enough to prevent the stand from sliding off the monitor. It's also a great option to have an extra micro USB for an extra mouse or keyboard for your computer or mobile phone. My only concern is how well the OSD multifunction button performs over time. It worked well and feels good, it's just a moving part which is a commonly used switch. It would have been nice to have a Vesa mount on the back, or at least a tripod mounting hole. Just to add more flexibility. I understand that this can be difficult with such a thin monitor. Overall this is great value for a 4K touchscreen and I am very happy with the product!