Solar Energy Backpack: This is a kind of innovative Backpack features Solar Panel and connected with the rechargeable batteries and different interface for different appliances such as mobile phone of MOTO, NOKIA, SAMSUNG, ERICSSON, SIEMENS and other CD players. The Solar Panel could electricize to the appliances under the lack of electricity. Even though, when you going on the trip and encountered the weather that without sunshine for a long time and the Solar Panel not work, yet there are some other way to solve the problem of lack-electricity, i. E. You may take off the batteries and then put in other new batteries instead of it, or you can take the special charger to electricize to the rechargeable batteries and appliances. So it is a real multifunction backpack for the consumers.