Have you ever met the embarrassed situation when there is power off during your talking ? Or want to make a phone call when you are missing you friends & relatives during your travel,but found it is less of power ? Sometimes,there is something emergent to call somebody, while your mobile phone is power off or without charger; sometimes, you are outside or during the travelling even if you have a charger. There are thousands upon thousands problems caused by power off, while the reason is the electrification capacity of mobile phone itself. Thus we have a bottle-neck problem; what could we do phone emergent charger, as it's protable, sd we could use the connective pin to the mobile phone power jack whennever you need. Or charge it when using the phone.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.