DC 12V,car batteries supply can inflate more than 150 psi material:metal output:35L/mn portable design This is a wonderfull product,on your trip,once your car breaks,you can inflate your car tire by yourself.If you want to have a picnic or ride on a bicycle,you can infltae its tire,inflate your tents. even if you likeplaying with your childrens,you can use it inflate ball,balloon.another merit, ...