equipped with pressure detector, mini car inflatable pump air pump compressor.It can save you a lot of time and manual labor 300 PSI range gas meter, giving tire pressure to show more accurate, built-in and cylinder movement. Suitable for bicycles, cars, motorcycles, tricycles, electric tires, soccer, basketball, inflatable boats, air cushions, balloons and so on. Easy to use, simply plug your car cigarette lighter into the power supply, cover the universal adapter on the tire valve and prepare for inflation Power supply: 12V car cigarette lighter plug, Not for Heavy Duty Use.small and light weight, convenient for indoor and outdoor.