[LED Lights for Safety]: The bike light is ideal for various conditions, including night riding, road cycling, or mountain biking. Featuring high-power LED lights with 4 distinct brightness modes, it illuminates the road and enhances visibility to others. The dual yellow warm lights improve overall road visibility, especially at intersections. [Waterproof Odometer with Horn]: A waterproof bike computer that tracks average speed, maximum speed, current speed (km/h), ride time, calories burned, odometer, and trip distance. Includes a sensor with magnet for accurate speed measurement. The backlit LCD display ensures clear visibility in all lighting conditions. [4-in-1 Bike Computer]: Combines a speedometer, odometer, 5-mode headlight (450 lumens), and 5-mode bike horn (120dB). The package also includes a 5-mode rear light. This 4-in-1 system helps keep handlebars clutter-free and provides essential functions in one integrated unit. Color: Black-Green Material: Plastic Size: 11.9 x 5.8 x 9 cm Package Contents: 1 x Bike Headlight 1 x USB Cable Note: Light reflection and differences in display screens may cause slight variations in color appearance. Measurement error allowance is +/- 1-3 cm.