hsini Solar Power Cell Phone Battery Charger for Apple iphone ipad ipod Samsung Galaxy - Retail Packaging - Blue Waterproof function: super waterproof function, carefully modulated surface with rubber oil, full color, feel comfortable, can be applied to harsh environments, ease of long-term use^Taiwan imported monocrystalline silicon solar panels, frosted surface treatment, efficient absorption of sunlight, 99% directly into electricity storage to power, and through mobile power quickly and safely as add power to your mobile device^the use of environmentally friendly silicone and ABS + PC engagement,drop functionality; personalized football back groove design, play non-slip protective effect; side features a convenient hidden USB / micro charging port, carry out convenience.