... UL Adavantage:10W USB Portable Power Supply 5V for MP3 MP4Features:1.External lithium battery pack for PSP,iPod, MP3, ... 5V Output current 1.5A (Rated) 2.0A(Max)4.Battery gauge :three stage charge level indicator ( low ... *24*82(mm)13.Battery weight :180gFunctions :Compatible for PSP,iPod, MP3,MP4,Mobile and other devices which ... power can be placed at anytime anywhere. Portable Power Supply 5V for MP3 MP4