NT-A5 Desktop 1D QR/2D Barcode Scanner Omnidirectional Hands-Free Barcode Reader Automatic Sensing Scanning Platform Scanne Image Sensor -CMOSPort/Interface -USB (standard)Supported SymbologiesPDF417,QRcode ,Date Matrix , Maxicode, Aztec Code ,HanxinCode,MicroQR,Code39, FullASC,Codebar, Industrial2of5, Interleave2of5,Matrix2of5, Code93, Code128, Code32, EAN 128, MSI, EAN 8&13, UPCA&E, Plessey,Presicion 4milDepth of scan field 0-270mmOperation ManualDecode speed 200times/ secondLight intensity Daylight, 4000LuxDecode Error Rate less than 1/8 millionPrint Contrast Signal 30Scan Angle Yaw(Skew) 72 pitch 82Voltage 5VCurrent Operation 780mA, Idle 255mA NETUM A6 Handfree Automatic Scan 2D Wireless + USB Omnidirectional Barcode Scanner NT-2050 2D Image Hands-Free Barcode Scanner Flatbed Desktop Bar code Reader The NT-2050 provides great features with enhanced performance. The powerful 2D Scanner and the compact size allow users to aim intuitively with accuracy even if space is limited. Furthermore, it is designed to read barcodes off smart phone screens even when they are in low backlight settings. It is the perfect solution for any space-constrained environments. Enhanced to quickly scan barcode at low-brightness on smart phone screen Enhanced scanning on reflective surfaces Enhanced scanning sensitivity, range, and speed Enhanced readability in special environments Easy to use; setting change not necessary for different applications