CRELANDER LED Knight Backpack (Black Knight)

Download APP: "LOY EYES"
Support Android and IOS systems
Support Bluetooth Connection
Power Supply of Power Bank(extra purchase)
Ful Colors LED Screen Pixel: 96 * 16, 
Pixel Pitch P2 Screen Size :19.5*3.5CM
Material:ABS+PC Hard Shell and  1680 PVC FabricSupport 
Display: Text, Picture, Animation (GIF), PaintingUsage:Daily, Travel, Outdoor Sport,Cycling, Riding motorcycle, Parties...etc.