The Dogtra T&B DUAL is the advanced DUAL DIAL Training & Beeper e-collar, designed for upland hunters. It is equipped with the DUAL DIAL transmitter with key features like 127 Nick/Constant stimulation levels, HPP vibration, Locate Beeper, Run/Point Beeper Modes, and a 1.5-mile range*. The expandable DUAL DIAL transmitter of the T&B comes with an OLED screen and two sets of the Rheostat Dial and buttons dedicated to each collar, which allows seamless and effective operation of the collars without switching the stimulation levels back and forth. The receiver of the T&B DUAL has a unique single-body receiver/beeper horn to eliminate the bulkiness and enhance the durability. It is equipped with the Accelerometer sensor for the most accurate motion detection of the Beeper Modes for Point-Only and Run/Point. * The range may reduce depending on the surroundings.