Only a Model X3 pink collar for Htucto wireless dog fence 2 in 1 training collar. Can be used by connecting directly to the Htcuto electronic fence remote control. It is IPX7 waterproof, so your dog can play or train with the dog collar in the rain or at the beach pool. Htcuto X3 Wireless Dog Fence Training Collar 2-in-1 (3500ft Fence) for Large/Medium/Small Dogs with 3 Training Modes,Rechargeable IPX7 Waterproof (Pink,only 1 Collar)