1)High capacity of 1800Mah, enough power charging for mobile phones. 2)Suitable for almost all brands of the cell phone in the market 3) Can charging for three mobile phone at the same time 4)USB output function, which can be used as a computer 5)Built-in rechargeable lithium battery,which will maintain 80% capacity after repeated charger and discharger for 500 times. 6)There are eight blue LED lights show the capacity of the battery,one red light shows the charging status. 7)Protect the chip intelligently: protecting circuit when excess charger,excess discharger and overload