The Powkiddy X28 is a compact gaming handheld powered by an entry-level Unisoc Tiger chipset. Available for under US$150, the Powkiddy X28 also has 64 GB of storage and a 5.5-inch display, among other features.https://www.notebookcheck.net/Powkiddy-X28-5-5-inch-gaming-handheld-launches-with-Unisoc-Tiger-T618-chipset.715226.0.html
This article soubds like it was badly written by ai or went through a bad google translation.
This device, as other ones with the T618 SOC, is capable of emulating more than 'Nintendo 64 and Game Boy Advance'. Nintendo DS and PSP easily, but a good part of the GameCube catalogue too, and some PS2 titles (but here it's limited, take it as a possible bonus)