1Customizable LED wheel display to light your way to a new level of riding 2Beyond a bike wheel light, Balight combines the most desired biking related features into a single awesome device, including customizable wheel display, socially connected APP, ride data tracking and safety alarm 3Aside from offering a fun and stylish appearance, it also allows cyclists to express their individuality, connect with others and enhance their safety on the road 4376 LEDs make high definition display, intelligence module ensured stable display 5Detachable, rechargeable battery, up to 10 hours run time Description: This bicycle wheel display system is an intelligent wearable equipment which is specifically designed for cyclists,which is able to display amazing animation images using the visual staying phenomenon of human beings.Itcan express your own personality and creativity. Special for you. You're worth it. Features: 1.Customizable LED wheel display to light your way to a new level of riding. 2. Beyond a bike wheel light, Balight combines the most desired biking related features into a single awesome device, including customizable wheel display, socially connected APP, ride data tracking and safety alarm. 3. Aside from offering a fun and stylish appearance, it also allows cyclists to express their individuality, connect with others and enhance their safety on the road. 4. 376 LEDs make high definition display, intelligence module ensured stable display. 5. Detachable, rechargeable battery, up to 10 hours run time. Specifications: Main Color: Black Package Weight: approx. 805g Charging: USB Cable LED Quantity: 376pcs Transfer Mode: Bluetooth 4.0/3.0 Operating System: Android & iOS Brightness Level: Adjustable Graphic Format: GIF, JPG, BMP, PNG Battery: 3000mAh, detachable lithium battery (working hours 4-10 hours) Charging Time: approx. 3-4 hours Waterproof: IP65 Application: Apply to 26" or longer wheel model Package Included: 1 x balight Battery is include. Note: 1.Products can only be installed in 26 inches or longer wheel model. 2.Please allow 1-3mm error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please in kind prevail.