Practical 7W 5V folding solar panel
Using crystalline solar technology， durable and high efficiency
With o-rings make it more convenient to use
Suitable for any occasions can be exposed to sunlight
Fits most of the smart phones， MP3 / MP4 / PDA / PSP / GPS， and other digital devices
With four small solar panel， the size of each panel is 15 x 8cm ( L x W )
The length of the USB cable is 17cm
The unfolded size of the solar panel is 51 x 19.5cm ( L x W )