270rotating wearable ring scanner1QR code|Wireless Bluetooth offline storage, barcode scanning, mini portable, wireless Bluetooth, strong compatibility, offline storage, 180 rotation, shockproof and drop resistance, normal/inventory mode. Small and light, with a stylish and elegant appearance, it does not affect other work of the hands when worn on the fingers, frees hands and works easily. High-speed wireless Bluetooth real-time transmission technology, no need to install drivers to scan and upload, superior performance, can effectively identify screen paper QR codes with high reflective screen codes, low brightness screen codes, fuzzy codes, damaged codes, color codes, etc. Easily scan paper-based QR codes on the screen. Small and flexible, the scanning head can be rotated freely by 270, reducing scanning limitations, making scanning codes more convenient, and easily responding to different scanning scenarios. Large-capacity brand battery, low power consumption, long standby time, long working time, asynchronous transmission, batch storage, large offline capacity, can store 120,000 items.