ADVANCED TECHONOLOGY: This portable scanner adopts advanced image transmission technology, coupled with two way communication and real time error correction feedback ERGONOMIC DESIGN: This USB barcode scanner features ergonomic design that ensures comfortable grip and control WIDELY COMPATIBLE: This handheld barcode reader supports the reading of paper barcodes, LCD display barcodes, mobile phone screen barcodes, and barcodes with inverse color IP54 WATERPROOF: This wired barcode scanner is IP54 waterproof and dustproof, and it can withstand the impact of falling from 1 5 meters FILL LIGHT: This USB barcode scanner is equipped with fill light that allows you to use it in the dark environment