The Dogtra E-FENCE 3500 is a rechargeable, effective, wired underground containment system for mild to stubborn dogs. This system allows for the installation of customized boundaries around your property, providing your dog with the freedom and safety to play in your own yard.

The E-FENCE 3500 system includes:

• 20 gauge wire, 500 feet long.
• Expandable capability with additional wire to cover up to 40 acres.
• Boundary Wire Continuity Light for easy maintenance and wire disconnection alerts.
• Waterproof transmitter with field width adjustment to customize the receiver area.
• Two correction modes: Vibration warning and vibration-only mode.
• 8 levels of adjustable correction settings to tailor to your dog's personality and temperament.
• Battery life indicator and fast-charging 2-hour lithium polymer batteries.