product Description 1. -Without build-in batteryno troubles caused by heat or strong sunshine. Reduce the risk of charging equipment due to high temperature, enhance the sense of experience 2.[EFFICIENT]-Solar energy and efficient solar charger circuit. To be nature's friend, environmental protection and energy inexhaustible. 3.Frosted panel avoids scratches on surface, making the panel more durable. 4. [HANDLE DESIGN]- Standard USB output fit for mobile phone and other portable digital devices.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. 5.[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.