Meeting An Emergency:
Whenever you are, not need alternating current, you could charge your mobile phone in time, and talk when charging.
High Effect, Save Resource
Charging 100-180mins, the charger can transfer the resource from the single AA to mobile phone battery. And make the phone keep 24 hours of standby time or talking 100-180mins.
Modern And Protable
Specially designed, modern style, small size (only bigger than AA a little) , portable.
Convenience
One AA alkaline battery or NI-MH rechargeable battery could be used for charging the mobile phone.
Safe Use
A safe stream of power to charge or talk longer on your cell phone