High-quality material: the high-quality metal cylinder has a quick heat dissipation function, which reduces heat and noise during use and can be used with confidence. Easy to use: plug the power cord of the portable BYGD air compressor into the 12V cigarette lighter socket of the car and attach the inflation nozzle to the tyre valve. Then adjust the pressure value required for the tyre and press the switch to start inflating. The air compressor pump automatically shuts off when the desired tyre pressure is reached. Digital display: our electric air pump is equipped with an accurate digital display screen and bright, durable LED to support your inflation needs in environments with little. The digital display can display the tyre pressure in real time and help you check the tyre pressure and preset the tyre pressure values. Multi-purpose: the portable air compressor offers 3 nozzles with which vehicle tyres, SUV, ATV, bicycles, motorcycles, air mattresses, inflatable boats and balls can be inflated.