Waterproof protection and extra battery in a thin, lightweight design! The juice pack h2pro is not only waterproof, (level 4), it exceeds military standards for protection while a powerful 2,600mah rechargeable lithium-ion polymer battery provides more than 60% extra battery when you need it most. Dual-injected rubberized exterior, water-tight ports, scratch-resistant screen protection along with mil-std 810g and ip-68 ratings enable this battery case to protect your phone against water, dirt, dust, children and just about anything else keeping you safe in any situation. Priority+ charge and sync enables pass-through charge & sync while connected to a computer. Your iphone 6 plus/6s plus recharges first, and then the juice pack case recharges itself.