300Amp Battery Jumper is a multi-purpose emergency power source. It can be used as a power source for 12volt DC applications. It can also start your car engine in an emergency situation. Air Compressor has a 260 PSI high power motor, Quick flow inflates 16" tires in only 5-10 minutes with a high pressure air hose. Has a USB Power Port to charge your MP3 player, iPod, digital camera or cell phone. Also, includes 2 DC power source outlets with overload protection for 12V appliances, 110 volt recharger for home use with quick and easy recharging time: AC24 hrs, DC 12 Hrs. Other features: built-in work light, Battery status indicator lights, Built-in safety features to prevent sparking.