OAK & IRON Smart Tire Inflator Battery Powered Portable Air Compressor Pump5 MINS INFLATION: Inflate a 195 65 R15 tire to 30 PSI in five minutes. And four additional preset modes, along with three adaptors, let you inflate anything! 99. 9% ACCURACY: 1 PSI accuracy and auto shut off when the preset pressure is reached. Read tire pressure status in real time. BUILT TO LAST: Built In 7,800mAh rechargeable lithium battery provides power to inflate all your tires and maintains its charge for up to 300 days, so its ready when