IP66 Dust and Water Resistance. This wireless cycling computer is powered by AA batteries and boasts an IP66 waterproof rating, making it not only immersive in water but also effectively dustproof. Therefore, even in rainy weather, you don't need to worry about unexpected rain causing data errors. Enjoy worry-free riding! Note: To better protect your odometer, do not immerse it in water for extended periods and dry it as soon as possible after riding in the rain. Unique Touch Technology. A simple touch turns the backlight mode on or off, thanks to our efficient and unique touch technology. Once activated, the backlight mode remains on, allowing you to view your latest exercise data anytime, anywhere. It's the ideal companion for your night rides! Super Long Detection Range. Still worried about whether a cycling computer is suitable for indoor riding? Rest assured! Our compact cycling computer (75.2 x 48.4 x 17 mm) has a wireless detection range of 100 cm, far exceeding similar products. Therefore, even when mounted on the rear wheel, it maintains the necessary sensitivity to accurately measure real-time data. Note: Only applicable to bicycles with 16-inch rims and standard 2mm spokes. Long Battery Life: Our cycling computer boasts low power consumption and a battery life of at least 8 months, making it extremely durable. Additionally, a low battery reminder will appear if you forget to charge it. Please note that previously stored data will be automatically erased after battery replacement, but powering off will not affect data storage. Feature-Rich: In addition to its ease of use, our cycling computer offers a variety of practical functions, including real-time/average/maximum speed, odometer, distance traveled, temperature, ride time, stopwatch, calorie consumption, fat consumption, and km/mph conversion to meet your daily riding needs. You can switch between 6 different interface types at any time to instantly view your current riding status.