Give your dog the freedom to roam safely in your yard without a physical fence! This Justpet K6 system is a wireless electric dog fence. Here's how it works: you plug in a central transmitter that creates a circular boundary zone (adjustable up to a 2000 ft diameter). Your dog wears the rechargeable receiver collar. If they get too close to the edge, the collar gives a warning beep, then a safe static correction (like a tiny shock) to teach them the boundary. It's a brand new, all-in-one system designed to keep your pet safely contained without the cost and hassle of installing a traditional fence. Perfect for training and peace of mind. Please use responsibly and follow all training guidelines.