☀ NO BATTERY: Without build-in battery，no troubles caused by heat or strong sunshine. Standard USB output fit for mobile phone and other portable digital devices..☀ EFFICIENT：Solar energy and efficient solar charger circuit. To be nature's friend, environmental protection and energy inexhaustible. Adopt monocrystalline silicon material, provide 20% high photoelectric conversion rate..☀ FROSTED SURFACE: Monocrystalline silicon solar cells and epoxy resin surface seal. Frosted panel avoids scratches on surface, making the panel more durable..☀ HANDLE DESIGN: Easy to be held, can be easily taken to outdoor activity to charge cell phone or camping light via USB interface. Portable and frame design fit for traveling, camping, hiking, riding and any outdoor activities..☀ MULTIPLE FIXING WAYS: Slim and light design with 2mm thickness. Can be fixed on smooth surface by provided suckers, hanged up or bind to bag by string, flexible to arrange.