The AdventureMini H20 waterproof portable charger is ideal for a boost of power when enjoying the great outdoors. The waterproof, rubberized finish is durable and designed to withstand extreme outdoor conditions. The 1.0A output provides up to 2 extra charges for the average smartphone battery. With a built-in carabiner, you have the ability to easily attach the portable charger to your belt or backpack so that power is always within reach.