describe: Multifunctional wireless cycling computer, including ambient temperature display, speed alarm function, clock function, and stopwatch function. With A bike/B bike data selection, two wheels and two sets of data can be set. Fashionable design exterior light, waterproof design, portable, detailed instructions, easy to install. The head can be rotated for easy installation of crossbar/vertical handle. The speedometer can be easily opened and closed. Real-time display of current speed, trip distance, riding time, trip time, calorie consumption and current time. Dual four-window display eliminates the need to frequently adjust buttons and allows you to view data easily. The large LCD display is illuminated and waterproof, working perfectly at night or when riding in the rain. Use high-capacity lithium manganese battery. Suitable for normal wheel circumference, effectively helping you track progress and improve endurance Packaging contents: 1 piece code table