8000mAh USB 5V/2A car buterry with air compressor

Part NO.: Q15Input Voltage: MIC 5VOutput Voltage: USB 5V/2AProduct Name :Multi-Function Jump StarterFunction :Start the car/ charging the digital products / lightingBattery Power :8000mAhSize:131*75*25mmMetal caseWork Temperature :-20~+65degree centigradeColor :black ,red blue（three  colors to choose）  How to use the power ?Step1:  Make sure the battery cpacity of the jump starter is above 50%（at least 3 indicator    lights stay ON).Step2: Connect the jump start cable to the drained battery of the vehicle;connect the red clamp to the  positive"+"terminal and black clamp to the negative "-" terminal.Step3: Connect the jump start calbl to the proper socket of the jump starter.Step4：Now attempt to crank start the engine .If the engine does not statr ,wait at least 10 seconds  before trying again.Step5: Disconnect the jump start cable from the jump starter within 10 seconds after the engine has been successfully started.Below is my contact information, I'm always here waiting for you, my friend.  Contact:Taneya  TangZHIMESON Group LimitedTel: 0086-13613029437Ph: 0086-0755-23112380-802 FAX:0086-0755-33235375Skype NO:[email protected]  Aawtchapp:13613029437 Hot sale multi-fuction car jump startersmulti-fuction car jump starterscar bank power with emergency hammerportable mini car jump starter