It's only the size of a carry-on suitcase, yet it can sort 5 kilograms of mixed grains with 5-level precision in just 30 seconds; it comes with swivel wheels and foldable handles, allowing it to be pushed around like a luggage case—up stairs, in elevators, across fields, and into cargo holds—wherever you need to go; it's equipped with a 12V lithium battery, and by connecting it to a 200W photovoltaic panel, it can operate continuously for 6 hours in the field; it features AI spectral weight dual-mode recognition, capable of sorting coffee beans, herbs, nuts, seafood, and plastic fragments... simply download a new algorithm via a mobile phone QR code to switch to a different material; it uses a modular quick-disassemble structure, allowing screen replacement in just 3 minutes with no cleaning tools required; it enables farmers to sell "quality produce" at "fair prices" right at the farm, frees laboratories from the need for large-scale equipment that occupies an entire floor, and allows entrepreneurs to accept "outsourced sorting" orders with a single machine—this is the miniature mobile sorting machine, which condenses "grading" from factories into backpacks and delivers "profits" directly into your pockets from the transportation route.