Introducing Dogtra’s latest train and beeper system, perfectly designed for one or two dog training and locating. With an independent dual dial design, you now have the ability to set the exact training level for each dog, without having to worry about changing the dial when switching between dogs. Featuring the same great all-in-one training and beeper collar from the 2700TB, removes the troubles of turning on/off and charging two units like competitor beeper systems. Fine tune your training levels with the 127 level rheostat dial control.