PetSafe Stay & Play Receiver Pet Collar for dogs 5 lb. and over. Offers 5 adjustable levels of correction plus tone-only mode for effective training. This rechargeable collar fits neck sizes 6"-23" and comes with a charger. It can be used with the Pif00-12917 Stay & Play Wireless Pet Fence Kit or as a replacement collar for the Stay + Play Wireless Fence or the PetSafe Wireless Pet Containment System.