Features:Excellent Scanner: The reading distance can be up to 20cm and the information in the barcode can be read quickly. Manual trigger scanning mode, easy to operate and convenient to use.Plug & Play:  No need to install any software or drivers. Widely used in supermarket, retail store, library, express and warehouse.Decode Type: Smoothly scan and decode 1D code - UPC-A, UPC-E1, UPC-E0, EAN-13, EAN-8, ISBN (Bookland EAN), ISSN, Code 39, Code 39 full ASCII, Code 32, Trioptic Code 39, Interleaved 2 of 5, Industrial 2 of 5, Matrix 2 of 5, Codabar (NW7), Code 128, ISBT 128, Code 93, Code 11 (USD-8), MSI/Plessey, UK/Plessey, UCC/EAN 128, China Post, China Finance, GS1 DataBar (formerly RSS) variants; And 2D code - PDF417, MicroPDF417, QR code, DataMatrix.Built-in high performance chip: Powerful decoding ability, it can easily decode fuzzy or incomplete barcode. Support paper code and screen code.Multiple Applications: Ergonomic design, comfortable to hold. Small and lightweight, ideal for supermarket, retail, warehouse, logistic, library, etc.Specification:Model: U-2Interface: RS-232 serial port; USB keyboard; USB imaginary serial portAlarm Mode: LED Light and BuzzerMode: Manual ScanDecode Type:-1DUPC-A, UPC-E1, UPC-E0, EAN-13, EAN-8, ISBN (Bookland EAN), ISSN, Code 39, Code 39 full ASCII, Code 32, Trioptic Code 39, Interleaved 2 of 5, Industrial 2 of 5, Matrix 2 of 5, Codabar (NW7), Code 128, ISBT 128, Code 93, Code 11 (USD-8), MSI/Plessey, UK/Plessey, UCC/EAN 128, China Post, China Finance, GS1 DataBar (formerly RSS) variants-2DPDF417, MicroPDF417, QR code, DataMatrixSeismic Capacity: Withstand 1.5m Drops in the AirCompatibility:  Windows98/XP/2000/AnroidWork Voltage: 5V, 1.6WOperating Current: 320 mAhWorking Temperature: 0°C -50°CStorage Temperature: -40°C -60°CWorking Humidity: Relative humidity 5%-95% (No Condensation)Scan Angle: ± 60 Degrees, ± 40 Degrees, ± 42 Degrees (Left, Right, Back, Round). Resolution: 752 x 480 pixelsDepth of Field: 3.5mil: Code128(9 characters): 15mm—35mm5mil: Code39(20 characters): 33mm—77mm13mil: UPC  (12 characters): 17mm—150mm20mil: Code39(5 characters): 55mm—195mm6.7mil: PDF417(20 characters): 25mm—90mm10mil: DM(20 characters): 15mm—115mm20mil: QR(20 characters): 9mm—175mmMaterial: ABS+PC Cable Length: 1.65 metersItem Size: 160 x 66 x 90mm/6.3 x 2.6 x 3.5inItem Weight: 128g/4.5ozPackage Size: 20 x 10.5 x 8/7.9 x 4.1 x 3.1inPackage Weight: 400g/14ozPacking List:1 x Barcode Scanner1 x User Manual