??Important Note??ONLY compatible with iPhone 8/7 (4.7 inch), NOT compatible with iPhone 7 Plus, 8 Plus (5.5 inch) or any iPhone Plus model. Please make sure this iPhone 7/8 charger case has been fully charged before your first use. Please press the button on the back of the charging case for 3 second to start charging. ??Add 155% Extra Power??Add 155% battery life for your iPhone 8 & iPhone 7 with 4500mAh built-in lithium polymer. It means add extra 22 hours talk time, 19 hours Internet use, 20 hours video time and 62 hours music time. Keep your iPhone 8/7 powered for a longer time. ??Protecting & Charging??With bumper and hard-shell back plate, maximize protection for your iPhone 8&7 from scratches and other daily wear and tear . Except 360??protection for your iPhone, it is also a portable charging case . 4 level led indicator let you know how much power is available. Take this iPhone 8/7 battery case on-the-go. ??Easy to Install ,listen & Sync?? By bending the soft part on the top , easily install your iPhone in charging case. Compatible with EarPods and AirPods, you can listen to music and charge at the same time. Conveniently sync your iPhone 7/8 to your computer without removing the battery case. Simultaneously charge your iPhone and battery case together with original iPhone cable. ??A Portable iPhone 7/8 Charger Case??Ergonomic design to go wherever you need to go.Let you never worry about dead iPhone 7/8 again.