Dogtra 2500 TANDB Training Collar The 1-mile range. You will have the control and locate ability on long ranging bird dogs. The Dogtra 2500T&B receiver outputs a Low-High stimulation from 1-127 levels. Features a wide range of stimulation that will fit any dog's personality from mild to the most stubborn. The Beeper tones come in Low and High tones along with 3 beeper modes in Run/Point, Point Only and Locate. Designed for dogs 35 pounds or larger.