Petsafe Wireless Dog Fence

PetSafe Wireless Dog Fence Receiver Extra Shock Collar PIF-300 IF-100 (Compatible with any PetSafe Wireless Fence System) 4.8 STARS ON AMAZON (1234 customer reviews) This waterproof (submersible up to 5 feet), extra receiver collar can be used to add another dog or as a replacement collar to the Wireless Fence Containment System (PIF-300). Add an unlimited number of pets with additional wireless receiver collars Compatible with PetSafe Wireless Containment System (PIF-300 system, IF-100 transmitter) and Stay+Play Wireless Fence (PIF00-12917). · Fits neck sizes 6-28 inches. · 5 adjustable levels of static correction. · Tone-only mode alerts your pet with a beep. · Designed for dogs 8 pounds and up. · Waterproof collar submersible up to 5 feet. · Compatible with any PetSafe Wireless Pet Containment System including (PIF-300 system, IF-100 transmitter) and Stay+Play Wireless Fence (PIF00-12917). · NOTE: Collar only – Home base transmitter not included. One (1) Collar: Unopened in plastic package. Two (2) Collars: Plastic opened, but unused - never put on a pet. Collar still wrapped with twistie-tie, just as it came in the package. THREE (3) for sale. ALL ARE UNUSED - NEVER PLACED ON A PET. The two straps on the collars that were opened are still wrapped with twistie-tie, just as they came in the package. Bought them and opened 2 of the plastic packages before reading directions and learning they were not compatible w/ the in-ground wire system I had.