This solar powered backpack combines four parts: bag + solar cell panel + battery box + adapters together to be able to charge most portable electronics cell phones, iPods , PDAs, GPS, laptop computer.
OutputVoltage / current:5V
1:USB input cable 1PCS,
2:phone adapter 5 PCS,
3:output conversion cable 1 PCS
Ideal to solar clean energy charge small electronics for emergency preparedness, backpacker, sports fan and outdoor workers. Back to school special. Every student deserves a full charged up backpack. Great slim design with extra width and cushion for shoulder belts. Chest and waist buckles, and cell phone bag embedded.