PetSafe In-Ground Deluxe Ultralight Collar PUL-275 + 2 FREE BATTERIES Extra collar with receiver for use with PetSafe In-Ground Fence (NOT compatible with PIG00-13619 and PIG00-11115) Collar is only compatible with PetSafe brand Systems Adjustable, ultra-light collar for optimal comfort; weighs 1-1/2 ounces 4 levels of electric correction and a beep-only warning mode Includes collar, short probes, receiver, PetSafe RFA-67 battery module and 2 batteries