Features： 1、Waterproof design, suitable for all weather conditions. 2、LED backlight for clear visibility, even in low light. 3、Features speedometer and odometer to track your Cycle speed and distance. 4、Includes a calorie counter to monitor your fitness progress. 5、Displays temperature in both Celsius and Fahrenheit. Specification： This waterproof bike computer features a LED backlight, speedometer, odometer, calorie counter, and temperature display. It's the perfect tool for tracking your Cycle progress and fitness goals. Features: Waterproof design, suitable for all weather conditions. LED backlight for clear visibility, even in low light. Features speedometer and odometer to track your Cycle speed and distance. Includes a calorie counter to monitor your fitness progress. Displays temperature in both Celsius and Fahrenheit. Specifications:  Model: Wired/ Wiredless(Optional) Size: 6.5*3.2*1.5cm/2.6*1.3*0.6in Weight:  Wireless model - 132g / 4.7oz,  Wired model - 102g / 3.6oz Package list:  1 x Bike Computer  1 x Set Accessories Package List： 1 x Bike Computer  1 x Set Accessories