AeroPaw Pro Wireless Dog Fence System for Safe Yards provides a safer way for your pet to enjoy a defined boundary in your yard. This wireless containment system creates a secure area so your dog can roam without entering restricted zones. The unit uses a strong, durable copper wire that attaches easily to existing fences, supporting up to four dogs and covering up to 40,468 square meters. The weatherproof collar emits a warning tone followed by a gentle static correction to help keep your dog within safe limits, making it an ideal solution for pet owners.