Waterproof, Dustproof, Shockproof: Custom Made For A Life Of Adventure With Waterproof, Dustproof (Ip66 Rating) And Shockproof Design; This Power Bank Is Your Lifeline When Things Get Rough.Ismart Technology: Exclusive Ismart Technology Detects And Delivers The Optimal Charging Current Of Your Device.3.4A Dual Output: Dual Output Of 2.4A And 1A Charge Your Smartphone And Tablet At The Same Time At The Ideal Speed; 2A Input Shortens The Power Bank Recharge Time By Half When Compared To Traditional 1A Input.