With intelligent system and good recognition of the USB devices， this mobile power bank is compatible with most intelligent cell phones or tablets， like iPhone， iPad， Samsung， HTC， Motorola， Miui and Nokia. It is also compatible with other digital devices with a USB (5V input voltage)， such as digital cameras， game devices， MP3 players.                                    Features            Portable and convenient and rapid chargeElectricity-saving function， long cycle lifePowerful with long operation timeExquisite design， made of high qulity materialMobile power storage， portable for both in door and outsidePerfect power supply for business trip， tranvel， field work， etc.                                                            Specifications            Capacity    20000mAh    <br>Input    5V / 1A    <br>Output    5V / 1A !#!amp!*! 5V / 2A    <br>Dimensions    (5.98 x 2.76 x 0.98)" / (15.2 x 7 x 2.5)cm (L x W x H)    <br>Color    Blue    <br>Weight    10.55oz / 299g    <br>                                                            Package Includes            1 x Power Bank1 x USB Cable4 x USB Adapter