With this battery case, it is easy to power your iPhone4/4S anywhere anytime. Offers you the convenience of a fully protective,  hard-shell case. Thin, light weight, low-profile design

Features:

This external battery is special designed for iPhone 4/4S

Feature with four blue LED indicators on the back, push the button near the indicator to show the battery level

With ON/OFF switch to control the battery case whether charge the iPhone or not.

When use the battery case with your iPhone 4, you can sync your iPhone 4 to iTunes without removing the battery case using the supplied micro USB/USB charging cable.
Cut design is for full access to all ports and keys, back cut is for camera flash lamp.

Also offer full protection for your iPhone, it can protect your iPhone from scratch, dust and other daily damage.
Dischargeable design for easy to fit and remove.

Slim and light weight, fashion and practical.


Specifications:

Model: rechargeable external battery case for iPhone4/4S
Capacity: 1900mAh
Dimensions: 126x 63 x 16mm
Weight: 65g
Color: Black, Purple
Output: DC 5V, 700mA max.

Kindly Reminder: please read the user manual carefully before operating this device

Package size: 163 x 101 x 24mm
Package contains:
1 x External Battery Case for iPhone 4/4S
1 x USB  Cable
1 x English User Manual