SportDOG SportTrainer 875E - 1/2 Mile RangeThe SportDOG Brand SportTrainer 875 is designed for field training and hunting with close working dogs. Featuring an easy to read OLED screen, you can view the selected dog, static stimulation level, and mode, as well as battery status, with just a glance. This, combined with large plus minus buttons to easily toggle among dogs and stim levels, makes the SD 875 especially suited for multi dog hunting situations. With SportDOG Add A Dog Collar