ZT661 series barcode-scanning module allows to quickly scan almost all kinds of barcodes (including 1D/2D and direct part marking) for bulk scanning. No matter what kinds of barcode, ZT661 series products can scan them quickly and accurately, whether the bar code is printed on paper, engraved on product, or even displayed on mobile phone screen. ZT661 series features compact size and can be conveniently used in any environments.