This extra receiver collar can be used to add another dog to any petsafe in ground fence system or as a replacement collar to the stubborn dog in ground fence. Petsafe Stubborn Dog Extra Receiver Collar. Extra Super Receiver for your containment system. Great for larger or more stubborn dogs.4 adjustable levels of correction plus beep only mode with vibration. The item "PETSAFE STUBBORN DOG EXTRA RECEIVER COLLAR PET RED LARGE SMALL TRAINING AID" is in sale since Thursday, April 13, 2017. This item is in the category "Pet Supplies\Dog Supplies\Training & Obedience\Bark Control". The seller is "supetpets" and is located in Christchurch. This item can be shipped worldwide.