A hand-held device for optically reading bar codes on goods, labels & shelves is

A hand-held device for optically reading bar codes on goods, labels & shelves is wand. A wand is a term used to describe a hardware device the size of a large writing pen (stylus). It is used to scan an object, such as a barcode, into a computer or other electronic devices. A wand is a tool similar to a writing pen that is used to draw on a graphics tablet.