IP67 Rating for WATERPROOF, DUSTPROOF, SHOCKPROOF: Custom made for a life of adventure with waterproof, dustproof 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. Featuring a powerful 18W PD Type-C port and a QC3.0 USB port (compatible with fast charging smartphones including and preceding the Samsung Galaxy s8 series). ALWAYS SAFE: Built-in short-circuit, over-charge, and over-heat protection automatically shuts the power bank down in the unlikely situation it detects a short circuit or input overload. This unit is seriously tough, it could be the end of the world and it still works!