OAKLETREA OI999 (Home 110V)/(Car DC 12V) 150PSI Tire Inflator Portable Mini Air Compressor Pressure Detection Digital Preset Inflation Night Emergency Lighting Li-ion Rechargeable Battery Inside Smart Multi-functions to Various Application - 1&gt;Automatically measure the tire pressure at the unit of PSI,BAR,KPA and KG/CM2 2&gt;Press '+''-' to preset target pressure value to inflate tires of cars,bicycles,sport balls,inflatable toys and decorations 3&gt;Lighting in the dark or emergency situations 4&gt;Blow the air flexibly for BBQ or campfire Easy to take it anywhere - Diameter* Length is 2.2*7.8 inches and Weight is 1.1LBS.This small air compressor can be carried on wherever you travel and experience. Easy to charge and use - 1&gt;110V AC(UL plug) and 12V DC(3m cigar lighter) are OK 2&gt;Three kinds of nozzles can be used for different purpose.(French valve adapter is for cars and bikes. Needle valve for balls. Air jet for other proper inflatable items) 3&gt;Inflating and Pressure Tips: Car front tire=2.5(Winter) and 2.2(Summer) KG/CM2,rear tire=2.8(Winter) and 2.5(Summer) KG/CM2;Bicycle=35-50(Normal),50-60(Mountain bike),80-120(Road bike)PSI;Ball=6(Volleball),9(Basketball),10(Football)PSI;Toys=6PSI Five steps to inflate - 1&gt;Corkscrew connecting nozzle with tire pump. Do not directly insert any ports 2&gt;Press 'Unit' to activate 3&gt;Press'+' or '-' to preset target pressure value 4&gt;Press 'On/Off' to start inflating 5&gt;Press 'On/Off' again to end Or it automatically close when reaching target value Important Things to Notice- 1&gt;One hour to completely charge the inflator before using 2&gt;Not continuously working long time at Max. inflating pressure because this is will hurt air pump itself 3&gt;Do not short connect DC port 4&gt;Not suitable for truck tires 5&gt;What you get: 1*Mini Inflator,2*Air Hose,1*Home Adaptor,1*Car Adaptor,1*Ball Adapter,1* Hand Bag,1*USA Standard Plug,1*3M Cigar Lighter,1*User Manual