With USB charge port; To power up and charge cell phone,digital camera,Ipod,iphone,PDA,MP3,PMP,PSP etc. With USB charge ... port;To power up and charge cell phone,digital camera,Ipod,iphone,PDA,MP3,PMP,PSP etc. Models: D3909A ... life:500 timesFuction&Character:Pocket sizePortable External battery for cell phone