Product Review

TRONOE 4000mAh iPhone 6s /6 /7 /8 Battery Charging Case is designed to improve the performance and battery life for your cellphone, an ideal buddy for office, game, daily life, outdoor, long distance journey & business trip.
High Capacity
With powerful 4000mAh actual capacity, the battery case add extra 22 hours' talktime, 80 hours music time, 18 hours video recording time for you, a perfect battery backup for your iPhone 6s /6 /7 /8.
Convenient LED Indicator
Lights let you know how much power is left.
More Than a Charger
The battery case also plays a role of a protective case for iPhone 6s /6 /7 /8, which helps to protect your smartphone from scratches, scrapes and shock.
Sync Technology
You can sync data to your Macbook, PC or laptop and charging your iPhone at the same time without removing the battery case.
Built-in Magnetic Metal Design
Works well with any magnetic car phone mount, convenient to operate your charging cellphone while driving.
Specifications:
Battery type: Lithium-polymer
Capacity: 4000 mAh
Working Temperature: 0℃-45℃
Input: DC5V/2.0A
Output: DC5V/1.0A
Dimensions: 5.6x2.8x0.7 inch
Package Contents:
1 x 4000mAh Battery Case for iPhone 6s /6 /7 /8
1 x User Manual