GOSO multi-function jump starter and portable power supply the GOSO multi-function jump starter will safely jump-start any 12V gas or diesel car battery (under 5.0L engine) multiple times, it also provides hours of essential back-up power to your computer laptop and all USB powered electronic devices like smart phones, tablets, psp’s, GPS, MP3 players, Bluetooth headsets and many more applications. With the elegant carrying case included you can take the power-bank with you anywhere and remain confident that you will be able to start your vehicle, make that important call, or power your tablet on that long trip in the car. The GOSO jump starter is equipped with a 2 x 5-volt USB ports for charging all USB-enabled devices and electronics. It also offers a 12v and 19v dc power supply output for charging and powering a huge verity of electronic devices including laptop’s from most brands, it even has an high brightness led flashlight with 3 different flash patterns (high, strobe and sos signal). This power-bank has built-in protection from over-charge and over-discharge, reverse polarity and short-circuiting. With automatic shut-off capability, it allows the unit to stay charged for longer periods of time between uses. This unit can hold a charge up to 6 months without use. The GOSO jump starter shell is all metal which ensures strength, durability and safety of the product.