1,Battery +protection case 2 in 1 combo features ,perfect solution for iphone signal problems.
2,Elegant design and use friend

Product Specifications for OB-P1

1. Cell type:Li-Polymer
2. Capacity:1680mAh
3. Input:5V/0.5A
4. Output:5V/0.5A
6. Charging time:3-5hr

1,Compatible with Iphone, ipad ,ipod ,Nokia,Blackberry,HTC etc .

2,smart shape design ,no need to remove the cover then you can enjoy all the features of iphone4

3,prevent any short-circuit ,over charge and over discharge and damage under any extreme condition.

4,Microcomputer power control indicator integrated
5,use iphone original interface ,no additional wiring to charge the battery ,safe and convenient .