1、CMOS image processing technology, can read barcodes/QR codes such as mobile WeChat in any direction in 360°, or even scan some incomplete, damaged or defaced barcodes/QR codes 2、Concise design and beautiful appearance, coupled with professional scanning performance, can provide users with an extremely comfortable and convenient user experience 3、With large scanning window can provide users with a large field of view 4、Can quickly and easily scan all kinds of printed barcodes, commodity codes and mobile phone screen barcodes 5、Wide range of applications, can be used for supermarket mobile payment WeChat QR code payment, etc. 1 x Desktop Barcode Scanner1 x User Manual  Item Type: Desktop Barcode ScannerImaging Sensor: CMOSLight Source: 620nm visible red light diodeTrigger Mode: Continuous, automatic inductionInstructions: Buzzer and LEDResolution: 640 x 480Interface: RS232, USBDecoding Speed: 500 times/secondResolution: 4 millionMinimum Contrast: ≥25%Decoding Ability: 1D: UPC/EAN,with complementary UPC/EAN,Code128,Code39,Code 39Full ASCII, Coda bar, industrial /Interleaved 2 of 5 Code93, Code11, ISBN, ISSN, China post, GS1 Databar, etc.2D: PDF417 QR Aztec DataMatrix Maxicode MicroPDF417 etc.Depth of Field: 40-120mm code39 (5MIL) 20-300mm EAN-13 (13MIL) 20-150mm PDF417 ( 6.8MIL) 15-250mm QR code (20MIL)Scanning Angle: Roll 55°, pitch ±25°, tilt ±75°Working Voltage: 5VCurrent Maximum: 212mAWorking: 156mA~212mAStandby: 156mA