Add another dog to your current SportDOG Brand® Rechargeable In-Ground Fence™ system (SDF-100C) or replace a Collar Receiver with the SDF-CR Add-A-Dog® collar. The Rechargeable In-Ground Fence system is expandable to any number of dogs over 8 pounds. The small, sleek Collar Receiver features a Li-Ion battery that charges in two hours and has a one to two-month battery life. Now featuring seven levels of static stimulation as well as vibration and tone, it's easier than ever to keep your dog safe and secure. Dependable in any environment, the collar features our DryTek technology - waterproof and submersible to 25 feet.

• Upgraded collar with rechargeable battery
• Not compatible with the In-Ground Fence™ (SDF-100A) or Contain + Train™ (SDF-CT) systems
• Anti-Linger Feature prevents dog from running down Collar Receiver battery in warning zone

The system works by producing a radio signal and sending it from the Fence Transmitter through the Boundary Wire. The Collar Receiver can identify that radio signal and will send a warning and/or correction when it picks up the signal. Bury the Boundary Wire to enclose the dog's Boundary Area. Temporarily define the Boundary Area with Boundary Flags for a visual aid in training your dog. Your dog wears the Collar Receiver with Contact Points that touch his neck and, once trained, can roam freely in the Boundary Area. When your dog reaches the Warning Zone, the Collar Receiver gives a warning beep/vibration. If your dog continues into the Stimulation Zone (closer to the wire), a safe static stimulation will be delivered through the Contact Points to get his attention until he returns to the Boundary Area.

Collar Receiver with ChargerComes with the following:

• Operating Guide
• Test Light Tool
• Long Probes