... shell lithium-ion battery Advatage: safe, efficient, durable electric power, easy to carry and removal, useful for all usb device ... , overcharge protection, over-discharge protection, short circuit protection; Accessories: power adapter, connect line, 7pcs charging head; Application: can be use ... for all USB 5V device, such as cellphone,Iphone,MP3,MP4,PSP,Camera; Color: white, green, pink, blue ...