Great for electric cars, hybrids and standard gas powered vehicles, the Auto will protect you from EMFs from your ignition system and help reduce fatigue, thereby making driving enjoyable again! Small, lightweight, and easy to conceal, the Auto comes complete with double-sided tape to enable it to adhere to any clean dry surface in your cab. This kit comes with the Auto unit and a cigarette lighter power supply that makes installation a breeze. Simply plug it into the cigarette lighter in your car. Note: If you choose to hard wire this item be sure to consult a professional to make sure the polarity is correct on the 12V plug so no damage will be done. Incorrect installation can lead to an electronic failure and is not covered by the warranty. The power consumption of the Auto is very small yet its effectiveness is far greater than you would expect!