In the core performance composition of portable 2D wireless barcode scanners, the FPC camera module plays an irreplaceable role as the "eye," directly determining the device's reading capability and scope of application. The reason why this scanner can stably and efficiently read barcodes in different scenarios lies in the excellent performance of its built-in high-performance 2D image scanning camera module. From the perspective of hardware foundation, the CMOS image sensor and global shutter technology adopted by the module are the first guarantee for imaging quality. The CMOS sensor has high sensitivity, enabling it to capture clear barcode images under different lighting conditions such as dark environments and indoor natural light; the global shutter effectively avoids image distortion that may occur during dynamic scanning, ensuring that barcode images remain clear and distinguishable even during fast-moving scanning processes. The 300,000-pixel (640*480P) configuration provides sufficient support for image detail presentation, allowing even subtle barcodes above 3mil to be accurately captured. In actual reading scenarios, the module's depth of field, resolution, and field of view parameters jointly build strong adaptability. The depth of field range of 30mm~500mm covers common needs from close-range code scanning payment to long-distance commodity barcode recognition; the resolution standard of ≥3mil/0.076mm enables easily reading blurred or worn barcodes; the 41°*31° field of view, combined with flexible reading angles of ±360° rotation, ±60° tilt, and ±55° skew, allows users to complete scanning without strictly aligning with the barcode, greatly improving operational efficiency. The decoding speed of 65CM/S, based on the module's efficient image acquisition, achieves rapid response, meeting the needs of high-frequency scenarios such as checkout in chain supermarkets and rapid inventory checking in warehousing and logistics.