Features: 1. Clear Display: The high-resolution backlit screen ensures easy readability even in direct sunlight or in low-light conditions. With a simple button press, you can smoothly scroll through various functions. 2. High-Precision Data: Upgraded programs and optimized chip materials deliver reliable real-time data on speed (current, average, maximum), distance (ODO, trip distance), time, and more for every ride. 3. Auto Wake-Up Function: When powered on, if no button is pressed and the bike moves forward 5 meters, the computer will automatically wake up wirelessly and retain the previous recorded values. 4. Low Battery Alert: A warning symbol appears when the sensor or computer battery voltage drops below 2.5V, preventing unexpected shutdowns. Simply replace the battery promptly to resume operation. 5. Complete Kit with Batteries & Instructions: Includes a detailed English installation guide, CR2032 battery, 23A battery, and all necessary accessories for quick and easy setup. Product Details: This wireless waterproof bicycle speedometer features a durable ABS housing and a clear backlit display for visibility in all lighting conditions. It provides accurate tracking of speed, distance, and time, with an auto wake-up function that activates when riding begins. The low battery alert ensures uninterrupted use, and the complete installation kit allows for tool-free setup. Ideal for standard bicycles, it is not compatible with electric bikes. Specifications: - Color: As Shown - Material: ABS - Size: 5.6 x 4.1 x 2 cm Package Includes: 1 × Cycling Computer 1 × Wireless Sensor 1 × Mounting Bracket 4 × Plastic Cable Ties 1 × Elastic Strap 1 × CR2032 Battery 1 × 23A Battery 1 × Magnet 1 × English User Manual Only the listed items are included. Note: Slight color variations may occur due to lighting and screen differences. Product measurements may vary by ±1–3 cm.