Various Features. Smart Riding Companion: Instant Speed, Single Mileage, Total Mileage, Cycle Through Functions, Clock, Ride Time, Average Speed, Two Data Storage, Automatic Sleep Mode, Full-Screen Luminous Display, Electricity Reminder, Life Waterproof. Advanced Metrics: Heat Consumption, Wheel Speed, Temperature Monitoring. High Definition Display:Clear, large-screen LCD for easy data viewing. Durability: IPX5 Waterproof - No fear of rainstorms or bad weather. Enjoy unlimited riding without concerns about the elements. Why Choose OUR Bicycle Computer? Unmatched Accuracy: Equipped with highly sensitive sensors for precise tracking of every ride. User-Friendly Design: Easy-to-navigate interface with touch controls for backlight and mode changes. Automatic backlighting prevents glare, ensuring visibility day and night. Endurance: Battery life up to 10 hours even with continuous use of backlighting. Automatically adjusts for energy efficiency. Seamless Installation: Quick and clean setup with detailed installation steps. Includes data transmitter, extension frame, and all necessary accessories. How to Use & Important Notes Installation: Fix the data transmitter on the front fork. Attach the extension frame to the head of the bike. Secure the code table on the extension frame. Settings: Clock Settings: the MODE button to enter the clock mode, hold SET for 3 seconds to adjust. Switch between 12/24 hour format. Wheel Size Input: After entering the wheel size, choose kilometers or miles. Confirm with MODE and SET buttons. Backlight Control: Touch the light bulb to toggle backlighting. Seven-color backlight version allows cycle through colors or turn off for energy saving. Maintenance Reminders: Set reminders for part replacements or chain lubrication based on distance presets (200km, 400km, 600km, 800km). Start Your Cycling Journey With This Smart Bike Computer Now!! PLS NOTE : The Extension bracket in "Description"is not included, Just for show. The actual accessories matched with this product shall be subject to the display in the main pictures. If backlight flickering occurs, it is due to the ink in the new product not being completely dry. It can be used normally after being dried with a hair dryer or in the sun (Wired model) Color: As Shown Material: ABS Package Contents: 1 * Speedometer Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.