New home-use cross-border outdoor backpack with large capacity sound system, waterproof design, multi-functional integration, and a powerful bass experience. Lightweight backpack design, freeing your hands, essential for outdoor travel and parties. Solves the pain points of traditional sound systems being heavy and not waterproof. Waterproof certification, no fear of rain and wind. The brand has been focusing on audio technology for many years, ensuring quality. Let the music be everywhere, igniting your passion and freedom.