The sleek power pack snaps inconspicuously onto the back of your iPhone, adding only a few millimeters of thickness, but more than doubling the battery runtime.

It prioritizes consumption, pulling power from the power pack first, maximizing the iPhones internal battery


Description:

Portable, compact and simplicity
Sealed design and very convenient to use
Non-slip and comfortable grip design
One LED charge status indicator light
Custom fit for the contour of iPhone 4/4S precisely
Designed for use on the go or in an emergency
Prevent your iPhone 4/4S from scratches and dust
Used for charging your iPhone 4/4S anytime and anywhere
Extend the working time of your cell phone

Features:

One switch on/off button for easy operation
Compatible with iPhone 4/4S
Battery type: lithium-ion battery.
Capacity: 2100mAh.
Color:black,white
Standby time: up to 390 hours.
Talk time: up to 6.5 hours on 4/4S up to 8 hours on Wi-Fi
Input voltage: DC 5V
Output voltage: DC 5V
Output Current: 500mA
Cycling times: Around 500 times
Weight: 60g (original package)
Size: 125mm*60mm*15mm