<b>How to use?</b><br> 1. Just fully put your iPhone 6 Plus / 6s Plus/ 7 Plus / 8 Plus into the battery case.<br> 2. Press the power button of the battery case, It will start charge your iPhone 6 Plus /6s Plus/ 7 Plus / 8 Plus. Press the power button again, the case will stop charging. <br> 3.Charger the power case:Plug your original data cable in the charging port of the case,then connect to USB adapter or computer USB port.When charging the LEDs will be lighten.The LEDs will blink and indicate how full it is when charging.<br> 4. This battery case are not included Lightning Cable ,when your battery case need charge, please use your original iPhone Lightning Cable to charge this battery case. <br> 5.Show battery status:Press the power button , the LEDs will be lighten immediately, show the power status.LED Indicator: 4 blue LED lights indicate 25%, 50%, 75%, and 100% of capacity.<br><br> <b>Note:</b><br> 1. This battery case is ONLY fit for iPhone 6 Plus / 6s Plus/7 Plus / 8 Plus(5.5 inch), Not fit for others.<br> 2.<b>For iPhone 6sPlus/6Plus</b>, Compatible with traditional 3.5mm lighting headphones or wireless Bluetooth headphones to listen to music.<b>For iPhone 7Plus/8Plus</b>, ONLY works with Apple Airpods or other wireless Bluetooth headphone. Not compatible with iPhone lightning headphone or traditional 3.5mm headphones. <br> 3.The battery case is not compatible with Apple CarPlay. <br> <b>Specification:</b><br> Capacity: 8500mAh<br> Output Voltage: 5V<br> Output Current: 1A<br> Input Voltage: 5V<br> Input Current: 1A<br><br> <b>Package Included:</b><br> 1 x 8500mAh Black iPhone 6 Plus /6s Plus/ 7 Plus / 8 Plus Battery Case <br> 1 x User Manual<b>(NOT included the lightening cable)</b><br><br> <b>CONTACT US:</b><br> If you are not satisfied with this iPhone 6 Plus / 7 Plus / 8 Plus charging case, We will offer replacement or full refund. please feel free to contact us.<br>