... Efficient charging, multifunction Travel necessities OEM, Dropship 2200mAh Multi-function Portable Power Bank for Samsung I9500 Galaxy S4, Blackberry Z10 ... protection for overcharge, overdischarge, overload and short circuit.Compatible with: l Popular brands mobilephonesl Apple iPod nano,iPod Classic ... itemPress “TEST” button to check power, the LED light will show you the status4 LED on: 95%-100% ...