Add another dog to your current SportDOG Brand® Contain + Train™ system (SDF-CT) or replace a Receiver Collar with the SDF-CTR Add-A-Dog® Receiver. The Contain + Train™ system's Containment mode is expandable to any number of dogs and the Training mode is expandable up to 3 dogs.
Ability to secure your dog(s) within a set boundary, and remotely train both inside the boundary at home, and outside the boundary while in the field when paired with your existing Contain + Train™ system
Anti-Linger Feature prevents dog from running down the Receiver Collar battery in the containment warning zone