Backpack with LED Display Screen Outdoor Dynamic Advertising Backpack DIY Wireless LED Walking Advertising Backpack

Features:
Can display text, animation and pictures.
Wireless operation with mobile phone.
USB interface, the power bank can be a power source, plug and play, flexible and convenient.
Large capacity backpack, classified storage, internal multi-layer structure design, more installed.
Composite screen film, protect screen from splashing.
Breathable, fresh, soft and comfortable, reduce shoulder pressure.
Slide zipper, rubber seal, waterproof and dust-proof.
Adjustable buckle, free adjustment of straps length.