SOLAR SCHOOL BACKPACKS SOLAR SCHOOL BACKPACKS,THE LATEST INTEGRATED DESIGN INTEGRATED THE FUNCTIONS OF SOLAR CHARGING,POWER STORAGE AND VOLTAGE OUTPUT.MEANWHILE,THE PRODUCT IS FIXED ONTO THE BAG AND IS EASY TO USE.WHEN YOU ARE WORKING IN THE FIELD,TRAVELING,HAVING A BUSINESS TRIP OR EXPERIENCEING POWER OUTAGE,THE PRODUCT ENABLES YOU TO EMPOWER YOUR MOBILE PHONES AND DIGITAL PRODUCTS ANYTIME AND ...