【200% Longer Battery Life】This battery case with powerful 5500mAh built-in lithium polymer provides an extra 27 hours talktime, 19 hours internet use, 21hours video time to your 4.7 INCH iPhone 6/6s/7/8.
【Charging & Protecting 2 in 1】Bovon charger case made by soft rubber material could give your iPhone full edge protection to protect your iPhone from scratches or other daily damage. Also, the internal safe chips prevents the power case short-circuiting, overheating and over-charging.
【Advanced Sync-through Technology】With the Bovon charging case, You can charge and transfer data to your Macbook, PC or laptop at the same time which is so easy and convenient.