Perimeter Technologies Comfort Contact Extra Receiver Collar Pack of 1

If you want to use 2 dogs on the Perimeter Technologies Containment systems, you must purchase an additional collar. Includes Medium Comfort Contacts.For Use With: PTPCC-100, PTPCC-100D, PTPCC-100DP, PTPCC-200, PTPCC-200D, and PTPCC-200DP.