❤【8500mAh Ultra-High Capacity】: This iPhone 8Plus/7 Plus battery case have powerful 8500mAh huge capacity, can provide extra 17 hours talktime, 60 hours audio playback time and 13 hours video payback time, will charges the iPhone 8Plus/7Plus almost three times, At the same time it also have highest industry regulatory certificates: CE, RoHS, and FCC, enough safe that you can rest assured to use. ❤【Specifically Designed for iPhone 7 Plus/8 Plus】: Eco-friendly iPhone 7 Plus/ iPhone 8 Plus battery case made with high quality and durable silicone material, no smell health and safety. The perfect size and 360 ° silicone pad around will increase the buffer can protect mobile phone well, ultra slim and light-weight iPhone 7 Plus/ 8Plus battery case is so convenient to hold in your hand or in your pocket, you can enjoy the fun of charging anytime, anywhere. ❤【Easy Installation & Use】: Please slide the iPhone 7 Plus/ 8 Plus into the charging port from top to bottom, then lightly press the phone after the charging port was inserted, finally turn on the back switch, after the indicator lights up will start charging, Please note when dismounting battery case, please don't warp your iPhone in huge angle, or the connector of battery case will be broken. It supports syncing data to your Macbook, PC or laptop and charging your cellphone simultaneously with