UNIVERSAL POWER SUPPLY : This car electric jack is powered cigarette lighter power outlet or car battery, and comes with a 11.5 feet power cord, long enough to go through the 4 tires without changing the power source. ATTENTION : Start car engine before operation. Never use this jack on slop ground or over 5 ton vehicles. EASY AND FAST LIFTING: Just press the button of the jack will raise or lower automatically, and it takes about 2 minutes to reach maximum height. Save your efforts and time. Perfect for car’s owner, especially best choice for women. SAFETY GUARANTEE ：Heavy duty steel pressure rod features stronger bearing capacity. Enlarge aluminum plate ensures a secure footing. Permanently lubricated DC motor can provide enough power.The jack will automatically stop working when it reaches the height limitation or overload. The self-locking device can prevent the jack from falling and keeps a steady height even with no power, ensure the safety of the car and people. ATTENTION: The electric car jack must be used on a flat and firm ground, and never to use it on a SLOPED ground! Durable Storage Case: Thie electric jack comes in a durable case, which helps you to keep the components well organized, and it can well fits into your vehicle. By the time, it can also serve as a warning sign to warn the other motorists when you are changing tire on roadside., Manufacturer: SOYWIM