Feature: 1. Two-dimensional wired scanning gun, can scan paper and screen 1D and 2D codes 2. The barcode device provides accurate, easy-to-use and fast data entry solutions for computer information systems 3. Powerful assistant for QR barcode scanning, easy identification of QR codes, keeping pace with the times, a powerful assistant for modern office 4. Just plug the connector into the USB port of the computer and the POS machine, and wait for a while to work 5. Plug and play, no need to set up, no complicated driver installation process Specification: Item Type: Barcode Scanner Symbologies: QR，Micro QR，PDF417，Maxicode，Data for Matrix,AZtecCode, UPC-E，UPC-A，EAN-8，EAN-13，128，UCC/EAN-128，AIM 128，ISSN，ISBN，39，Interleaved 2 of 5，ITF-6，ITF-14，for Matrix 2 of 5(European for Matrix 2 of 5)，Industrial 25，Standard 25，Codabar, 93，11，Plessey，for MSI-Plessey，RSS-14，RSS-Limited，RSS-Expand Resolution: ≥ 4 Million Depth of Field: EAN13 15mm-350mm (13mil)； Barcode 39 5mm-145mm (5mil)； PDF 417 5mm-80mm (6.67mil) Data for Matrix 5mm-73mm (10mil)； QR Barcode 5mm-135mm (15mil) Print Contrast Ratio: ≥ 20% Reading Angle: Roll : 360°，Pitch : ±60°，Skew : ±60° Field of View: Horizontal: 40°. Vertical: 45° Mechanical / Electrical: Interface: Keyboard wedge, RS-232, USB (HID or V-COM) Working Voltage: 5 VDC±10% Operating: 180mA Standby: 55mA Environmental: Operating Temperature: -20℃ - +60℃ Storage Temperature: -30℃ - +70℃ Humidity: 5% - 90%（no-condensing） Ambient Light: 0~100.000lux (net light) ESD: ±9 KV (contact discharge); ±15 KV (air discharge). Package List: 1 x Barcode Scanner1 x USB Cable