RAVPower 6700mAh Power Bank with iSmart 2.0 Technology - White

2A Input & 2.4A Output: 2A input can save half of the time to fully charge the 6700mAh portable charger (please use a 2A or higher output charger); 2.4A output makes it charge other devices 2X faster than other chargers. The maximum input and output for the fastest and strongest charging experience.Exclusive iSmart Technology: Charge faster and smarter than others, automatically detects and delivers the optimal charging current for any connected device- ensuring the fastest and most efficient charge.Compact body, amazing capacity: Fitting in the palm of your hand, the 6700mAh upgraded capacity can charge iPhone 6, iPhone 6s for 2.5 times, and more than one charge for large phones like 6 Plus,etc