The waterproof solar powered charger made of eco-friendly silicone rubber and ABS + PC material,The waterproof portable solar charger shell was made Solid and Sturdy Rain-splash & Shockproof, Waterproof, dustproof, Compass, and metal hook for hands-free or hang it on backpack wherever you go with this solar power bank.The Solar Phone charger is ideal choice for hiking, camping trips or other outdoor activities as one of the portable solar chargers .