• Romeson RS-2UD desktop barcode scanner for 1D and 2D codes (QR, PDF). • Features a planar CMOS sensor (480 x 640) and white LED illumination for accurate scanning. • Auto-sensing trigger mode with a scan speed of 500 times/second, suitable for high-volume environments. • Supports screen scanning and reads colored, incomplete, and reflective barcodes effectively. • Plug-and-play functionality with USB interface, compatible with Linux, Android, Windows (XP, 7, 8, 10), and Mac systems. • Durable ABS+PC material with 1.5m shock resistance and IP52 rating for commercial use. • Adjustable angle for convenient scanning in various retail, warehouse, or library settings. • Prompt mode includes buzzer and LED indicator for successful scans.