LED Display Screen Dynamic Backpack Outdoor

Main Material: Denim Gender: Unisex 
Backpacks Type: Softback Capacity: 20-35 Litre 
Interior: Interior Slot Pocket Interior: Interior Zipper Pocket 
Interior: Interior Compartment Interior: Computer Interlayer 
Handle/Strap Type: Soft Handle Item Type: Backpacks 
Closure Type: Zipper Rain Cover: Yes 
Exterior: Open Pocket Carrying System: Arcuate Shoulder Strap 
Lining Material: Polyester Pattern Type: Solid 
Support points: 64*64 full-color dot matrix screen 
Screen size: 25*25 cm or 9.84 * 9.84 inches 
Voltage and current: 5V / 2A 
Power supply mode: mobile power supply 
Communication mode: Wifi 
Supporting file formats: text, picture, GIF animation