Dogtra T&B Dual 2-Dog Training & Beeper Remote Dog Training E-Collar with Dual DialThe Dogtra T&B DUAL 2 DOG is the advanced DUAL DIAL Training & Beeper e collar designed for upland hunters. The DUAL DIAL transmitter is equipped with key features like 127 Nick Constant correction levels, HPP vibration, Locate Beeper, Run Point Beeper Modes, and a 1. 5 mile range*. The transmitter comes with an OLED screen and two sets of Rheostat Dials and buttons dedicated to each collar, allowing seamless and effective operation without switching