Battery Case for iPhone 6s 7 8 6, 4000mAh Portable Protective Charging Case for Apple iPhone 6s 6 7 8 (4.7 inch) Rechargeable Extended Battery Charger Case-(Black)

NOTE:
* This battery case is only suitable for iPhone 6 s / 6/7/8 (4.7 inches), not suitable for other models and sizes.

Features:
1. Compatible with Apple Lightning headphones and 3.5mm 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, ultra-long battery for iPhone, ultra-thin, thin, thin design.
3, four bright LED lights indicate the remaining battery power, 1 light = 25%, 2 lights = 50%, 3 lights = 75%, 4 lights = 100%
4,100% compatible with iOS version, and future iOS software updates, and the switch with one-button smart design is easy to operate.
5, smart charging mode design, when your iPhone is fully charged, the charging box will automatically disconnect the power.
6, the charging box has a long life cycle. (up to 500 times)

How to Use:
1. Insert the battery case completely into the phone.
2. When using for the first time, please drain the battery life and then charge it 6-8 hours after the battery is exhausted.
3. When you want to charge your phone through the battery case, make sure the phone is tightly closed at the bottom of the case, then press the power button for about 3 seconds to start charging.
4. When you want to stop the battery case to charge the phone, press the power button for about 3 seconds, it will stop charging.

Specification:
1, capacity: 4000mAh
2, input: DC 5V
3, output: DC5V
4, product size: 143.85 * 71 * 16.5mm
5, package size: 185.21 * 104.5 * 25.15mm
6, charging power level: 1 lamp = 25%, 2 lights = 50%, 3 lights = 75%, 4 lights = 100%

include:
*1x beautiful packaging box
*1x user manual
*1x 4000mAh battery case for iPhone 6/7/8/ 6s (4.7')