Generalscan GS R3520 2D Imager Bluetooth Ring Scanner (Zebra SE2707 engine) is a 2D wearable scanner provides a great user experience with enterprise-class durability, which enables high performance scanning on printed and mobile barcodes with intuitive illumination field and LED aimer. Integrate dual-mode Bluetooth 4.0 technology with IOS, Android and Windows, which not only significantly increases productivity, reduces error rates, but also provides a perfect solution for warehouse, distribution center, manufacturing, etc.