The Motorola RS507 Ring Imager is a hands-free barcode scanner that's mounted on a ring and designed for warehouse and package handling applications. It's considered to be the most rugged scanner in its class and can perform reliably in demanding environments like loading docks, assembly lines, and warehouses. The RS507 has the following features:

The RS507 can be used by left-handed people by removing the comfort pad under the unit, rotating the trigger 180 degrees to the front, replacing the comfort pad, and tightening the strap. To scan, press the trigger with your thumb. 

Includes Battery for Motorola RS507 Ring Imager

The HRS507-Li replaces the OEM P/N KT-BTRY-RS50EAB02-01 batteries that are used in the Motorola RS507 Ring Imager. It provides twice the capacity of the standard RS507 battery and is ETL listed.