Dual Simcard+Power pack 1900mAh+USB cable+Protection case can support iPhone, iPhone 3G, iPhone 3GS.

Avery simple put Powerful STK menu to select default number for making calls, use any of the 2 numbers to make call at any time and divert the primary number to receive calls on both numbers.
No more carrying 2 phones around and No more misplacing of your simcards, stay organized.
Very simple operation, Easy Plug-&-play.
Very convenient for travelers wishing to use 2 different simcards while traveling
Double simcard Use 2 difference SIMCARD with your iPhone for your journey
Portable power pack. (Enough Power to hold your iPhone for Days while you are traveling)
Protective case (Made with same material used in iPhone, scratch proof)
USB cable(Hidden USB cable for your data connection anytime, anywhere, always with you)