USB wired interface,plug and play,no need to install software,convenient and fast Can be used in logistics,supermarkets,store management,library management,and other industries. The biggest advantage is:cost-effective,to meet most of the basic needs. Precision iris head with high scanning sensitivity and fast scanning speed After the scan is successful,it has a crisp beep,and it is also turned on as needed,turned off,and the volume is adjusted.It is very user-friendly. The overall design of the product is exquisite and beautiful,easy to carry,a good helper for working cashier Can identify most barcodes on the market Colour:Black material:plastic Package Contents: 1* Barcode scanner(USB interface) Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.