Petsafe Dog Training Shock Collar Receiver for Underground Electric Dog Fence SystemThis Dog Training Shock Collar Receiver is suitable for 998D-1/998DR-1/998DRB-1， please confirm it before you buy it.This item can be worked with the Petsafe Electric Shock Anti Bark Collar together so that you can control 2 or more dogsApplication:Applicated for dogs or other pets training.Package:1 x Collar Receiver (Battery Included)Note: Size 1:998DR-1; Size 2:998DRB-1;