portable charger/ USB charger ( MRP33B )

Highlights: double USB ports,slim appearance,built in battery,LED light indicating,high efficiency,overcharger protection, black&white,CE&ROHS,one year warranty introduction: with double USB ports , one is input port , the other is output port with built-in battery , can charge laptop ,MP3,MP4,mobilephone, ipod ,iphone,3G,PSP ect . battery volume can be indicated by a series of LED lights, abd a LED light indicating power ON/ OFF , with slim appearance operation guide : insert USB input port into the computer by USB cable and charge it ,and power and battery LED light , with turn gree, when the battery is fully charged , the battery volume will indicate and the system will stop charging ,insert USB output port into digital products by USB cable and charge it , when you don't use it ,please pull USB cable out . size: 96*60*14.6mm battery type: capacity : 1100mAh ,2200mAh ,3300mAh , input voltage : 5V /1A output voltage: 5V/ 1.5A , 5V/1A