【Electric Underground Dog Fence】 Our electric wireless dog fence provides a hassle-free solution to train your dogs and create their independent living space. With buried wires and a wall-mounted transmitter, it helps shape your dogs' habits and keeps your furniture and daily necessities clean and tidy. It eliminates the need for physical fences, allowing your pets to roam freely without any uneasiness. 【Efficient Dog Fencing System】 Once installed, our dog fence collar works automatically to train your dog. It emits a beep and shock as your dog tries to cross the boundary wire. The closer your dog gets to the boundary, the more intense the shock becomes, effectively training them to stay within the designated play area you have set. 【Wide Control Range】 Our electric fence system allows you to adjust the width of the boundary by simply adjusting the knob. You can customize the range up to an expansive 1.2 acres/53189 square feet, giving your dog ample space to play and roam. Additionally, the wire break warning feature alerts you promptly if the wire is broken, ensuring that the system remains functional and your dog stays safely within the designated area.