Worlds first water, shock, and dust resistant power bank with true high capacity 7800mAh. The 7800mAh power bank is perfect for long flights and even longer road trips. The 7800mAh power bank is especially great for those adventururous outdoor activities to the beach, on vacations and hiking.Carry the mobile power bank wherever you go or any time you need to charge your devices. Charge almost all 5V USB mobile devices like tablets,iPads, kindles, Google nexus and iPhones. This high capacity power bank can store up to 4 full charges or add 32 hours talk time to your iPhone 4S/4G/3GS.