Portable Electric Air Compressor Pump

* Performance upgrade, battery life increased by about 45.4%, inflation speed increased by about 114%., * Without fear of high pressure, it only takes 20 seconds to pressurize from 0psi to 150psi., * Tire pressure digital displayed for detection., * Five inflation modes. Bicycle/car/motorbike/ball/free modes, * Built-in lithium battery, no need to connect external power-supply when power-bank works.