• Romeson RS-1UD desktop barcode scanner with 480x640 planar CMOS sensor. • Supports 1D and 2D barcodes, including QR codes and e-payment codes. • Compatible with Linux, Android, Mac, and Windows XP/7/8/10 operating systems. • Features auto-sensing trigger mode for power saving and hands-free operation. • Adjustable scanning angle for versatile use on various surfaces. • Durable ABS + PC material, IP52 grade for dust and water resistance. • Shock resistance: withstands 1.2m free fall on concrete surface. • Plug and play USB interface, no driver installation required.