Professional trainers and everyday dog owners can build a better dog with this simple and rugged training and tracking device. 2.5-second update rate provides faster location tracking when your dogs are on the run Customize training for each dog with 18 levels of continuous and momentary stimulation, tone and vibration settings At-a-glance directional tracking on the built-in display with GPS and GLONASS satellite reception shows which direction and how far away your dogs are OS Android ASIN B07SG785XG Color Black Batteries 1 Lithium Ion batteries required. (included) Item Weight 1.06 pounds Manufacturer Garmin Special features One-Handed Operation, No-Look Tracking, Customizable Training Whats in the box PRO 550 Plus Handheld; AC Adapter; Manual Item model number 010-02035-50 Product Dimensions 8 x 5 x 3 inches Scanner Resolution 128 x 128 Human Interface Input Buttons Other display features Wireless Connectivity technologies Gps