The Max Receiver for the PCC-200 Fence is designed for the stubborn dog that’s typically hard to contain. It features Perimeter's highest range of correction consisting of five fixed correction levels and three progressive settings. Whether you have a high energy dog or one that has been hard to contain in the past, the Perimeter Max Receiver is the solution you need. 5 correction settings 3 progressive settings Multiple frequency settings Waterproof containment collar Lite, Plus and Max systems are cross-compatible