back-up power case for iphone4/4s 1:capacity:1900mah 2:iphone4 external battery backup power pack 3:popular in europe

Back-up Battery case iphone 4/4s

Features:

1) Battery and case in one

2) Double electricity. 3) Advanced Battery Manufacturing Technology 4) High-efficiency electronic products5) 4 LED Display battery capacity 6) Quick charge

7) Comfortable handfeel 8) USB Port

9)eight colours for optional: Black, White, Cyan, Magenta, Yellow, Red, Purple,Orange.

Specification :

Cell type: Li-polymer batteryInput: DC 5V 500mAh   Output: DC 5V 500mAhCapacity: 2000mAhProduct dimension: 129 x 63.8 x 17.3mmmProduct weight: 70.9gGift box dimension:152 x 87 x 23mmGift box weight: 180g

new arrival back-up power case for iphone4/4s