SportDog SDF-CR Add-A-Dog Collar

Add another dog to your current Sport DOG Brand Rechargeable Fence System (SDF-100C) or replace the Receiver Collar with the SDF-CR Add-A-Dog Collar.

The rechargeable fence system is expandable for an unlimited number of dogs.
The small and stylish collar receiver features a Li-Ion battery that charges in two hours and lasts one to two months.
Now with seven levels of static stimulation, vibrations and tones, it's easier than ever to keep your dog safe.
Reliable in any environment, the collar features our DryTek technology - waterproof and submersible up to 25 feet.