LED Knight Backpack Waterproof Hard Shell Travel Bag

Name: LED Backpack \nColor: Black \nBackpack material: ABS, PC, 1680PVC \nScreen points: Two screens, each 48 x 48 \nScreen point spacing: P2 \nCommunication method: Bluetooth-compatible \nBackpack size: 32.7 x 18 x 42cm \nWeight: 1.5kg \nPacking list: \n1 x LED Backpack \n1 x Instruction manual \nNote: \nDifferent displays may cause the color of the item in the picture a little different from the real thing. \nManual measuring,please allow 1~3mm error,thank you.