Safety jumper cables is the revolutionary technology that protects you and your vehicle. The "spark free smart connect" allows you to safely and easily connect the clamps directly to the vehicle battery terminals. The LED status indicators warn you of a wrong connection and tell you when you have a proper connection. The built in surge protection prevents damage to both vehicles modern electronics during the jumpstart process. No other product on the market can provide the simplicity, safety and security you get with Safety Jumper cables.