Item Type: QR Code Scanner Material: ABS Colour: Black Input Voltage: 5VDC Working Current: 320mA Standby Current: 235mA Ambient Operating Temperature: -20℃ to 60℃ Storage Temperature: -30℃ to 70℃ Humidity: 5% to 95% relative humidity, non condensing.  Features: Shock resistant design withstands dropping from 1.2m height.  Application: It can be used for daily cashier scanning, mobile phone scanning code payment, express barcode and QR code scanning.  1、Smart Scanning: Adopting optical imaging scanning, can easily scan the QR code and barcode on mobile and computer screens.  2、Practical Uses: Can be applied for daily cashier scanning, mobile phone scanning code payment, express scanning and so on.  3、Simple Working: You can also fix the barcode scanner on the table to free your hands, which will improve work efficiency.  4、Efficient Work: No needs for software, drivers, or network, and you can quickly start working by plugging the USB cable.  5、Easy Carrying: Designed to have a light weight and a compact size as well, both the storage and carrying are very simple.