Parameter of solar panel:
Solar panel size:110*94(mm) (ttl 2pcs)
Bag size:116*135*25(mm)
Weight:128g
Output power:2W
Output volatge:5.0V
Output current:400mA

The main function:
get the power from sunshine and transfer it to mobile phone

Using method:
put the solar bag under the sunshine, and connect it and mobile phone with original USB cable of mobile phone, then it can charge for mobile phone.