Looking for an easy way to recharge your smartphone or digital device? Look no further! This Portable Heavy-Duty Power Bank w/ Interchangeable Adapters, is a convenient solution for recharging your iPhone, iPad, GPS unit, tablet and many more. With four LED lights on the power bank, you can easily determine how much charging capacity remains. This product protects your tech gadget from overcharging, over-discharging and short circuit. With this power bank, you?ll never worry about your devices running out of battery again!