Newest materials and technology,make our battery case longer use life than other battery case.also powerful 7000mAh battery to extend your iPhone's 200% service Charging life. 【EASY TO USE】:Built in upgraded buttons of the charging battery case for more sensitive commands,you can easily switch on/off the iPhone battery case.Press the power button 3s start charging to the iPhone,Press power button twice, the case will stop charging,Press to check the battery power,LED battery level indicators that let you know how much power you have (0--25%--50%--75%--100%).
eBay