DESTEK iPhone X Battery Case Ultra-thin 3200mAh Rechargeable Portable Charging case External Battery Pack (Black-) Rechargable 2200 mAh Lithium Ion polymer battery and Ultra thin, light weight, low profile case all in one. Talk Time Up to additional 8 hours on 3G and 16 hrs on 2G. Internet Use Up to additional 7 hours on 3G and additional 11 hours on Wi-Fi. Audio Playback Up to 44 hours and Video Playback Up to 11 hours. Impact resistant protective case with a Dual Injected Shock proof band helps protect your phone from damage. Super fast recharging speed with Stand by Switch so you can toggle between Charging and Stand by so YOU can deceide when your phone needs a Jolt with the flick of a switch. 4 LED Charge Status Indicator Lights  So now you will always know when your phone is 25%, 50%, 75% and 100% charged. So you will never be caught off guard with a dead phone again.