The Generalscan R3520 is a 2D wearable ring scanner that uses the Zebra SE2707 engine. It can read a wide range of symbologies, including 1D, 2D, and OCR, even if they are poorly printed or displayed on a screen. It has a battery life of up to 16.1 hours and features dual-mode Bluetooth 4.0 technology, NFC, vibration alerts, AI identifier recognition, real-time data transmission, and the ability to upload batch data offline. The scanner is also durable, capable of withstanding multiple 4.9ft./1.5M drops to concrete. It's suitable for various applications, from warehouse to front-of-store.