The super slim battery case is only 6.6mm in thickness, only 12.8mm with iPhone 4 or 4S. It's coming with free screen protective film ,so let your iPhone completely protected. With 1500mAh capacity, it almost double your iPhone 4 battery life.

Super slim battery case:
1.6.6mm only. 12.8mm with iPhone.
2. USB charging and data transmission
3. Capacity: 1500mAh(Li-polymer battery cell)
4. Output: 5V/1A
5. Colors: black/orange/white and more
6. Material: ABS
7. Packing: Gift Box
8. Free Screen protective film included
9. MFi, FCC, CE, RoHS
10. Good for iPhone 4 and 4S

Double the Power of iPhone 4/4S
This super slim battery case for iPhone 4 and 4S virtually doubles the power available to play, talk, surf and blog.
A full charged case gives you:

-Up to an additional 6 hours on 3G, up to 12 hours on 2G, of Talk Time
-Up to an additional 36 hours of Audio Playback
-Up to an additional 9 hours Video Playback

Advanced Battery Technology
Hi-tech, A-grade thium polymer battery that can recycling for more than 500times. Built in overcharge, short circuit and temperature protection. No memory effect. Charge your device smartly.

Battery Status Indicator
To check the power level of the battery case, just push the button and the LEDs will indicate the status clearly.

Power On/Off
Long push the button to turn the charging on or off. So you can control the battery case to charge the iPhone or not.

Reliable Quality
We only use A-grade battery cells. We use Seiko chipset to manage the power. All product come from our ISO9001 certified factory. Every piece of product are through functioning test and burn-in test to ensure quality. We prepare spare parts for distributors to ensure customer satisfaction.

MFi
We are Apple authorized MFi licensee and contract manufacturer. We can help you to bring to branded product to market fast with MFi certification in a very cost effective way.