QYG Co.,Ltd is an Apple Authorized Manufacture.We can do the OEM and ODM 

service to you and also apply for the MFI certification for you.

 

QYG power case QB1700 is a protective case for iPhone4(s) and doubles iPhone's battery.it

features unique changeable batteries and bumpers for your preference.

 

Specifications:

 

 

Features:

*Strong,durable engineering material

protects your phone from bumps and scratching and gives a non-slip coating.

 

*Sync and Charge

Keep the case on all the time

 

*Changeable high capacity battery

More batteries for your option to provide endless  power

 

*Cut outs for all the iPhone4(s)'s features.

Use your phone without  removing it from the case

 

*Bumper s of different  colors

Enjoy different color every single  day