The Dental RAT is a premium periodontal charting input device, it works with your current probe and dental software. The easy to use wireless foot-operated mouse enables the most effective, consistent handsfree periodontal charting solution available. Also eliminates cross contamination, increase productivity and runs X-rays and intraoral cameras, etc. 3-year warranty. Includes: 1 Dental RAT unit,1-dongle, 1-USB cord, 1 instructional DVD and 1 Ear Phone Color: Lilac