... overload, short-circuit function3. Efficiency power protection, only 40UA power consumption, fully charge the power bank and left if for one ... month, it still have over 90% power.4. Two USB socket helps consumer charge two devices ... .5. Suit for lots of media product,such as: mobile phone, mp3, mp4, GPS, psp and bluetooth headsets. ... 's logo and design are welcome. 2012 New Mobile Phone Power Bank