This device is a large-screen, high-expandable industrial-grade smart handheld computer. At the same time, it can integrate barcodes and is powerful. In addition, Android 11.0 version also provides built-in UHF, fingerprint, and volume measurement functions. It is extremely expandable and can be perfectly adapted to logistics and express delivery. Warehousing inventory, manufacturing, retail, power inspection, operation and maintenance, asset management and many other industries have helped customers significantly improve their operations and management standards.