Large LCD display provides easy, quick reading of speed, distance, and riding time on every ride. Wireless, waterproof, compact and lightweight design offers durability and unobtrusive use for daily cycling. Day and night backlight with green and white illumination improves readability in all lighting conditions. Multifunction bike computer functions as a speedometer and odometer, reliably measuring speed, distance and riding time. Slight rattle from the wireless automatic function is normal and does not affect performance. Suitable for all bicycle types: road cycling, mountain biking, folding bikes, and standard bicycles. Use scenarios: Training rides on the road: monitor pace, total distance and riding time to track progress. Trail or mountain biking: keep track of speed and ride duration across varied terrain. Daily commuting: log distance and time to manage daily travel and fitness goals.