... card, USB fan and other fixed equipment power supply! This product is environmentally friendly, energy ... ) 6, the charging time: about 4hrsStandard interface: 1, the input interface: MINIUSB interface;2, the output ... interface: USB interface ( 5.5V 700mA ).3, material: plastic. 4, LED color display: charging ... digital mobile equipment 2200mah battery portable power station for mobile phone