PetSafe® Wireless Pet Containment System Add-A-Dog® Extra Receiver Collar

Add Unlimited Pets to Your System – Keep as many pets as you need safely in your garden as long as they wear a PetSafe® Wireless Fence Receiver Collar5 Levels of Stimulation – Plus tone-only mode for training. Pets can be trained in 2 weeks when used as directedWaterproof Receiver Collar – With low battery indicatorAdjustable Receiver Collar – Fits pets 3.6 kilos or more with neck sizes 6 to 26 inches