One of the pain points of external portable monitors is the need to constantly plug them into a wall. The Banflixtop Portable features "Battery Bridge Technology"—a 10,000mAh internal battery that powers the screen for up to 6 hours, but more importantly, it can back-feed power to the connected mini-PC or smartphone. This means your entire workstation can run for an entire cross-country flight without searching for an outlet.
Official "proper papers" or detailed technical manuals for these niche brands can be difficult to find online. Always check for a physical manual in the box or a QR code on the device for the digital version.
A small form factor that can be powered via a wall outlet or sometimes a portable power bank.