... : 7 hoursUseful time: >800 timesIndicator: 5LED show status of power Efficiency: 85%Shell material: Cover high-quality ABS + piano ... battery Advatage: safe, efficient, durable electric power, easy to carry and removal, useful for all usb device, automatically entering the ... : can be use for all USB 5V device, such as cellphone,Iphone,MP3,MP4,PSP,Camera; Color: black, white, red, pink Iphone power bank