Pump your car tire from flat to full in under 4 minutes and your twin air mattress in under 45 seconds with 0-150 PSI. This inflator features an auto-fill shutoff for hands free use and an on-board LED light for assistance in roadside emergencies. It has a digital gauge that allows for precise pressure readings during use in dark areas. High pressure and high-volume inflation presents multi-use functions. To keep up with your multiple accessories in one place there is on-board storage. This bundle also includes (2) 4.0 Ah batteries which provide 4x runtime versus the 1.5Ah.