DOGTRA T&B DUAL COLLAR SYSTEM 1 DOG The Dogtra T&B Dual is an advanced Dual Dial Training and Beeper electronic collar design for upland hunters. Comes equipped with the Dual Dial transmitter with features such as 126 nick/constant stimulation levels, HPP vibration, locate beeper, run/point beeper modes, and a 1.5-mile range. The expandable Dual Dial transmitter includes an OLED screen and two sets of the rheostat buttons dedicated to each collar, allowing seamless operation of the collars without switching the levels back and forth. The receiver of the T&B Dual has a unique single-body receiver/beeper horn to reduce bulk and enhance durability. Comes equipped with the accelerometer sensor for accurate motion detection of the Beeper modes for point-only and run/point modes. This unit has been tested and received an IPX9K waterproof rating for supreme protection in wet environments.