Smart LED Interactive Screen： Customize 500+ trendy pixel patterns via the exclusive app, with real-time music-synced lighting effects to stand out at street festivals/concerts. Features IPX5 waterproof casing and 5-year screen lifespan, maintaining vivid displays during rain hikes/bike rides Organized Storage System： Triple-layer anti-theft compartments: ① Front quick-access pocket for 5000mAh power bank ② Main compartment with dedicated laptop sleeve (fits 13" MacBook) ③ RFID-protected back pocket ④ Dual elastic side drink holders. Weighs only 1.1kg - 30% lighter than competitors Eronomic Wearable Design： ① Magnetic quick-release buckle (50kg pull-force tested) for 3-second on/off ② Adjustable strap fits 145-195cm heights ③ Honeycomb breathable back panel reduces 70% heat buildup during activities. Corrosion-resistant metal parts pass 72hr salt spray tests 24/7 Creative Studio： Exclusive APP community updates daily templates (festival themes/game characters/fan art). AR photo-to-pixel converter and social media sharing boosts engagement by 300%. Premium Gifting Solution: Includes gift box with laser engraving service, cleaning cloth and silicone case. CE-certified with 365-day replacement warranty. busutu Crossbody Bag, Multiple Compartments, Water-Resistant Materials, Holds Phone, Camera & Water Bottle) - for the urban daily life. Connect and pair in APP, you can set notifications via app, when there is a message on the cellphone, it will be a notification reminder on the led screen of the sling daypack