Suposun 20000mAh Car Jump Starter High Quality Portable Power Bank/Newest Multi-Function Battery Charger Booster Mobile Phone Laptopgh/With Air Compressor+Safty Hammer+2 SOS Light 1 LED Light (Red) 1.High quality car jump starter Charging for mobile phones and laptops,starting cars,adjustable LED lights,Variety of chargers and jump lead that can give your car and your products the extra energy they need. 2.There are a variety of adapters that be used to charge various mobile phones,for Sony PSP,MP3/MP4 players.PDAs,notebooks,car refrigerators and other compatible appliancesIt supports vehicles with 12V voltage or more.to start your car,firstly you should connect the power bank with the battery holder and then connect the negative and positive connectors of the holder with your car battery, 3.It uses high-power battery that supports fast charging.low self-discharge,up to 1,000 charging cyclesWith a zipped case that also contains the adapter tips and power lead,this product will fit in your car to be used in case of emergency, 4.It has 3 different kinds of lighting modes - you can use the flashlight and SOS lights in the dark in case of emergency,it is very usefull for worker camp and so on. 5.It has air compressor Perfect for inflating your car tire,bicycle tires,basketball,football,safety hammer to shatter glasses,Survival Blade to cut of something when need or in danger.