Features:
1. Compatible with Apple Lightning headphones and iPhone headphones to charge and sync your phone to your computer without removing it from the battery pack.
2 , the battery pack provides you with a fully protected shape accessory housing , The overall thickness is only 0.71in , not only thin but also very light .
3,100% compatible with iOS version, as well as iOS software updates.
4, smart charging mode design, when your iPhone is fully charged, the charging box will automatically disconnect the power.

How to Use:
1, Insert the battery case completely into the phone. 
2, Press the button on the back for just 1 second to check remaining power, one LED Indicator will means 25% power.
3, Press for 3 seconds to charge the phone, and press the smart switch for 3 seconds to stop charging the phone.
4, Connect the iPhone'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.

IMPORTANT NOTES:
1. Apple CarPlay is NOT supported;
2. Wireless charging is NOT supported with the case on;
3. This battery case is NOT designed for screen protection;DOES NOT protect the screen;
4. Ricephly iPhone X/XS battery case does not support Car Charger, High Voltage or Quick Charge deployed adapters, please use original iPhone charging cable and wall adapter (5V/1A ONLY) to charge the battery case.

Specification:
1, capacity: 4000mAh
2, input: DC 5V/1.5A
3, output: DC5V/1.0A
4,Battery type: Li-polymer battery

include:
*1x beautiful packaging box
*1x user manual
*1x 4000mAh battery case for iPhone X/XS (5.8')