<b>U-good True Ultra Slim/Lightweight Battery Case with a Glass screen protector, Charge&Protect your iPhone 7 Plus/8 Plus</b><br><br><b>How to use?</b> Remove case's top piece and slide in iphone to connect case’s bottom charger tightly,cover the top piece and Long press the back power button 2 seconds to Start /Stop charging; Short press power button once to check battery level Only(Won’t start charging).<br><br><b>Why You Choose Our Battery Case:</b><br> 1.►Endurable 4200mah battery, double battery life of your iPhone 7 Plus/8 Plus <br> 2.►Ultra Slim 14.4mm & Lightweight 3.2oz ,may be the slimmest/lightest on market),Not bulky!<br> 3.►Support iPhone wired headphone and Airpod,just plug in your headphone to Enjoy music/Make a call.<br> 4.►Safe Charging. Built-in smart chipset to prevent short circuit and over-charge.<br> 5.►Heavy duty protection level,Hard-shell design max protect your iphone from scratch and bump.<br> 6.►Charge and SYNC iPhone to PC,Macbook or Laptop at same time through iphone charging cable.<br> 7.►Equipped with 4 LED lights to check power level by short-press once the power button<br> 8.►Full Support with any iOS versions and all future updates. No “chin” design,Not bulky like the others.<br><br><b> NOT Support:</b>Wireless charging / CarPlay / Power splitter dongle / High voltage or Quick charge adapters<br><br><b>【Important Note】</b><br>1. We recommend that you use original iPhone charger/cord to charge this battery case<br> 2.Please don't use the case in bad/wet weather long time,charging malfunction may happen<br>3.If it doesn't charge your phone or headphone doesn’t work with this battery case,please clean phone’s charging port dust,or send us email via amazon directly.<br><br> <b>What's in the Box :</b><br> 1x Battery Case for iPhone 7 Plus/8 Plus<br> 1x Glass screen protector(Gift)<br> 1x Top cover(Gift)<br> 1x User manual