LED Sling Bag Bluetooth APP Programmable Waterproof Adjustable Strap LED Waist Pack for Cycling Travel Item Type: LED Sling Bag Material: Casing: ABS, PC, Back: 1680PVC Size: Approx. 32x9x20cm / 12.6x3.54x7.87in Support Dots: 48x48 full color dot matrix screen Dot Pitch: P2 Power Supply: Portable power bank Communication: Bluetooth, controllable via mobile APP Supported Image Animation Size: 48x48 pixels Program Support: Text, image, Gif animation Features: 1. Lightweight and Convenient: Easily create content anytime, anywhere, simple to operate, eye catching effects 2. Strong Waterproof Performance: Premium scratch resistant ABS, super waterproof 3. Support Multiple Languages: Chinese, Traditional Chinese, English, Russian, Japanese, Korean, German, French, Italian, Portuguese, Spanish, Latin, Thai 4. Rich material library with up to 40 types of materials to choose from, can also customize text, images, Gif animations Bluetooth Version: Mobile APP control, no need for network, convenient, fast, and stable