SportDOG Brand In-Ground Rechargeable Fence Add-A-Dog Coller

The SportDOG Brand In-Ground Rechargeable Fence Add-A-Dog Collar (SDF-CR) is an expansion collar designed for use with the SportDOG rechargeable in-ground fence system, allowing you to add additional dogs over 8 pounds. This collar is ideal for handlers managing working dogs, service animals, or household pets that require reliable boundary control.

The SDF-CR features a lithium-ion rechargeable battery that fully charges in two hours, providing 1–2 months of operational battery life per charge cycle. It offers seven levels of static stimulation, along with vibration and tone alerts, allowing for precise intensity adjustment tailored to each dog's temperament and training needs. The collar's compact design minimizes interference with standard collars and harnesses while ensuring durability in various field conditions.

Handlers working with K-9 units, service dog programs, or multi-dog households will find the modular design beneficial, as they can purchase additional collars as their needs grow. The rechargeable battery eliminates the need for disposable batteries, making it a practical choice for extended deployments or remote training operations where resupply may be challenging.