SportDOG SportTrainer Expandable Dog Remote Trainer 3/4 Mile OrangeFeatures an easy to read OLED screen that clearly displays the selected dog, static stimulation level, and mode, as well as battery status. Large plus minus buttons make toggling among dogs and changing stimulation levels a breeze, making the SD 1275 especially suited for multi dog hunting situations. With SportDOG Add A Dog Collar Receivers, the remote trainer can be expanded to control up to 6 dogs at once. 10 levels of static stimulation, as well