The RavPower Ace is a portable charger for mobile devices. With the patented iSmart 2.0 Quick-Charge technology, it features twice charging speed as fast as the traditional products. Advanced circuit chip maximizes the protection technology against overcharge and short-circuit in the using process. The deliberate ergonomical proportion design and the smooth curvature side makes the product fit perfectly in the palm of your hand. Every unnecessary design detail has been removed, to achieve the pure, elegant and minimalistic design.