Every product photos of the site refer to a range of different models. Some displayed optional accessories are not disponible in all the models of the family product
Barcode Scanners Zebra DS3578
DS3578 - Cordless digital scanner with bluetooth for 1D and 2D barcodes reading
Zebra DS3578-ER, BT, 2D, ER, multi-IF, FIPS, kit (USB)
Zebra DS3578, BT, 2D, SR, multi-IF, FIPS, kit (USB)
They catch immediately and without difficulties all kinds of barcodes.