Feature: 1. STYLISH AND PORTABLE: This neutral LED backpack is easy to carry, and the LED screen can display a variety of pictures and text, which you can program to display whatever you want. Support unlimited creativity 2. PROGRAMMABLE SCREEN: The fanny pack built in 2.5x5.1in soft LED screen is durable and last for 5‑6 hours after charging. The application software offer a variety of animations and graphics to choose from. You can also edit and upload custom pictures and text through the application software 3. SPACE DESIGN: This smart LED fanny pack has an adjustable shoulder strap that you can wear on your chest, back and waist. The front pocket of the backpack can hold a portable power supply, and the main compartment has multiple small compartments that are large enough to hold your daily supplies. Also come with a headphone jack, so that you can listen to music anywhere 4. EASY TO USE: Download the for SPOTLED app from the for iOS App Store or scan the QR code in the user manual, long press the power button to activate the LED screen and connect to the phone Bluetooth hotspot. Within the app, you can enter text or create your DIY doodle style to dress up the fanny pack to grab everyone attention 5. APPLICABLE SCENARIO: The LED chest bag is a fun and portable billboard that can be used for advertising, holiday greetings, signs, and commercial promotions. Perfect for commuting, traveling, biking, outdoor adventures, work, hiking backpacks, or even surprise gifts to friends Specification: Item Type: LED Display Fanny Pack Material: Oxford cloth Power Supply: USB port APP: For SPOTLED APP Connection Mode: Bluetooth Application: Used in advertising, holiday greetings, slogans and commercial promotions. Perfect for commuting, traveling, biking, outdoor adventures, work, hiking backpacks, or even surprise gifts to friends. Package List: 1 x LED Display Fanny Pack