Battery Case for iPhone 6 6s, 4000mAh Portable Protective Charging Case Compatible with iPhone 6 / 6s (4.7 inch) Rechargeable Extended Battery Charger Case

Lonlif iPhone 6 / 6s Battery Case Extended Battery Protective Portable Charger Case is engineered specifically for iPhone 6 / 6s to provide you longer battery life and more protection.
Pros:
Provides 150% extra battery life for your iPhone 6 / 6s.
100% compatible with iOS 12, and future iOS software updates.
Just feel free to use your 3.5mm headphone without audio jack extender.
No excessive bulk and compact design for portability, and fits easily in your hand or pocket.
Allow you to sync the data from your iPhone 6 / 6s to your PC and charge your phone without taking the battery case off.
Note:
Car Play is NOT supported.
Not compatible with iPhone 6 plus / 6s plus.
Wireless charging is NOT supported by this battery case.
This iPhone 6 / 6s battery case is manual, not automatic.
Please don’t put this battery case in damp environment use or near the heat source.
This iPhone 6 6s charger case DOES NOT protect the screen, DOES NOT protect the screen, DOES NOT protect the screen.
Lonlif iPhone 6 / 6s battery case does not support Car Charger, High Voltage or Quick Charge deployed adapters, please use original charging cable and wall adapter (5V/1A ONLY) to charge the battery case.
How to use the battery case?
1.Press the button on the back for just 1 second to check remaining power, one LED Indicator will means 25% power.
2.Press for 3 seconds to charge the phone, and press the smart switch for 3 seconds to stop charging the phone.
3.Connect the phone's original charging cable with the battery case, then you can charge the battery case. When charging four white LED lights flash to indicate the corresponding power of the battery. Four white flashing lights indicates the battery case already be charged fully.