... universal power pack,which surface is made by extreme strong glass ,and it have a LED light can indicate how many ... light indication, Press on the button to indicate real power in battery case from 25%,50%,75%,100%7 ... easy to take.8) 5000mAh Capacity buildin battery can charge two times of your mobilephone and your ipad full one time9 ... and overheat10) CE,RoHS ,FCC compliant..u portable power bank