The text is too small for my old eyes. It has no signs of wear. That is why I listed it as open box.
One thing rare and special about this monitor is its 1500:1 contrast ratio. All others I saw have only 1200:1 or 1000:1.
Currently, Newegg sells one for $405.78. Here is their description.KYY 4K Portable Monitor 15.6'' 3840x2160 UHD USB-C Monitor, 100% Adobe RGB, 400cd/m^2, IPS Computer Gaming Display HDR Travel Monitor w/Speakers & Smart Cover for Laptop Xbox PS5 Switch PC Phone
Here is some more information from the Internet.Panel Type / BacklightIPS / WLEDScreen Size / Aspect Ratio15.6 inches / 16:9Max Resolution & Refresh Rate3840 x 2160 @ 60 HzMax Brightness400 nitsContrast Ratio1,500:1View Angles178 degrees (Horizontal and Vertical)Screen CoatingAnti-GlarePorts1x Mini-HDMI, 2x USB-C 3.1 / Thunderbolt (DisplayPort 1.2 Alt Mode), 1x Headphone (3.5 mm)SpeakersYesDimensions14.49 x 8.86 x 0.37 inchesWeight1.7 pounds
Here is the description from the AI:The KYY 4K UHD 2160p Portable Monitor is a high-quality display designed for gaming and multimedia purposes. With a large 15.6-inch screen and a 1500:1 contrast ratio, this monitor delivers stunning picture quality with vibrant colors and sharp details. Featuring a matte screen surface and support for HDR technology, this IPS LCD display provides an immersive viewing experience. It also offers a wide viewing angle of 178.0 degrees for comfortable viewing from any angle. With various video inputs like mini HDMI and USB-C, this monitor is versatile and easy to connect to different devices.
Please let me know if you have any questions.