1. Power supply: USB direct plug2. Material: polyester fiber3. Resolution: 16x324. Pixel: 5125. Gray scale: 656. Pixel pitch: 3.75mm7. Screen size: about 13.1 x 6.4cm8. Exterior size: about 27 x 7 x 14cm9. Weight: about 420gFeatures:1. Mobile APP connection to change words, graffiti, animation, music, text, any DIY2. Comfortable handle design, reduce the burden3. Metal zipper, smooth and durable4. Sturdy fasteners, adjustable shoulder strap5. Internal pockets for easy item categorization, can put bank cards, business cards and so on6. Waterproof design, not afraid of rainy day bag get wet7. Bright light beads, shining at night8. Built-in USB charging port, easy to use