Fashion Backpack Solar Powered Charging Backpack Waterproof Oxford Large School Backpack for Teenagers Schoolbag Trend brown Package internal structure: mobile phone

Package internal structure: mobile phone bag

phone calls

climbing，skateboarding

Material: Resin

Fashion Backpack Solar Powered Charging Backpack Waterproof Oxford Large School Backpack for Teenagers Schoolbag Trend brown Package internal structure: mobile phoneOverview Our solar panels are designed to last. Built using rugged fabric and strong solar cells that can withstand the rigors of everyday use (2 years on the solar panel, 1 year on battery pack) HIGH PERFORMANCE SOLAR PANELS made from industry leading monocrystalline solar cells charges most smartphones completely in 3. 5 hours in direct sunlight Specification Bag size: medium Capacity: 20 35L The internal structure of the bag: zipper pocket, mobile