Whether in the office or camping. on evection or on the way back, you could charge your mobile phone when it is power off. Put some AA battery in your pocket, wallet, briefcase or trunk when you are on evection or travelling, then you could charge your phone when there is power off. One AA battery could reach 2 hours talking for your mobile phone.It is the best style for your sellection,and meanwhile a high classic business-user gift.Meet An EmergencyWhenever you are, no need alternating current, you could charge your mobile phone in time, and could talk with others when charging.High Effect, Save ResourceCharging 100-180mins, the charger could transfer the resource from the single AA to mobile phone battery. And could get the phone keep waitting 24 hours or talking 100-180mins.Modern And ProtableSpecial designed, modern style, smail size(size bigger than AA a little only) portable.Convenienceone AA alkaline battery or NI-MH rechargeable battery could be used for charging the mobile phone.Safe Useover voltage protection for the circuit and your mobile phone. Smart charge. safe use.Designed for userwith one primary cellMay be used with areargeabie cellDesigned for use with mibileel ectronics powered by single lithium cellCharging current 310mA maximun(waries with usage conditions)Adds up to 240mAh to devices battery per AA alkaline battery Compact sizeEnables immediate usage of device even if battery if fully depletedAutomatic shutdoen primaty battery is depletedTypical efficency 88%