Gelrova Music Cycling Backpack [Battery not included] - LED Bicycle Backpack With Speakers, Expandable Helmet Storage (14.8L25.2L) for Scooter Bike, 15-16" Laptop Compartment, Knight Pro 19inch

Important: Battery pack is not included and must be purchased separately.
^^ Please be aware: As the speakers are not designed for high-volume, professional-grade audio projection, their performance can be significantly overwhelmed by wind noise at high speeds. Therefore, we do not recommend this product for use on motorcycles.
^^ Important Note: Ideal Use Cases for the Built-in Speakers To ensure your complete satisfaction, please be aware that the built-in audio system of this backpack is specifically engineered for medium-to-low-speed activities like bicycle riding walking. Its sound output is optimized for personal listening and maintaining awareness of your surroundings in relatively quiet environments. ^^ DYNAMIC LED EYE DISPLAY- Customize your ride identity with 100+ animated eyes via APP (iOS/Android)! Tempered glass shields ensure scratch-resistant screen protection while enhancing visual impact. ^^ IMMERSIVE 360 SOUND SYSTEM- Dual side-mounted Bluetooth 5.0 speakers deliver high-fidelity audio for navigation alerts and music streaming without compromising road awareness. ^^ SMART STORAGE EXPANSION- Patent-pending zipper system expands capacity by 70% ( 14.8L 25.2L ) to securely fit full-face helmets + daily essentials. ^^ ALL-TERRAIN PROTECTION- Military-grade hard shell defends electronics against impacts. Dedicated 15" laptop sleeve + 16" main compartment with padded dividers protect work essentials.
^^ Please note: Batteries are not included.