> Switch the Network ON LINE by STK menu. Also can Edit Menu and show it on screen when standby.
> Integrate two SIM cards for saving charge of roaming or long-distance call
> Select the number straight on line, do not need to stand-by in turns.
> Advanced Smart-SIM technology leads to stable result.
> Good for all GSM cellular phones.
> Do not need to change the back cover, battery, and others..