The 3820 combines exclusive Adaptus Imaging Technology 5.0 with Bluetooth wireless connectivity to provide class-leading performance and durability for retail and commercial cordless bar code reading. In applications where operators must move about to read bar codes, cables become a limiting factor. They cause inefficiencies or safety and ergonomic concerns. Cable length often limits working range, resulting in an object being moved to the reader because the reader can't be taken to the object. With wireless bar code reading, operators have freedom of movement required to quickly, safely, and ergonomically read bar code data. With a 33 foot (10m) working range and 24 inch (61cm) read-range, the 3820 has the right combination of performance and features. .