Features: 1 This bicycle computer is made of high quality ABS material. Its shell is strong and durable. It is not easy to be damaged and has a long service life. 2 The bike computer provides a clear and bright 4-wire display that accurately records speed and mileage. The number on the display is clear and obvious, and you can see your speed intuitively. You can adjust your cycling activities according to the number on the display. 3 The bicycle computer has a variety of functions. The display has odometer, maximum speed, average speed, travel time, calorie consumption, speedometer and other information, so you can see your own riding data at a glance. 4 The distance between the bike computer and the transmitter is 60 cm, and the distance between the transmitter and the (magnet) is 1 cm. It can be compatible with bicycles, electric bicycles and 4-40 inch wheels of motorcycles. 5 This advanced bicycle computer is designed with backlight and suitable for night riding to ensure safety at night. It's also waterproof and rainproof, and it works well even in rainy weather, providing accurate information about your cycling activities anytime, anywhere. Specifications: Type:Bicycle Computer Material:ABS Size:55x46x18mm Color:Black Theme:Sports Stopwatch and Accessories:Waterproof Stopwatch For Bike Type:Universal Sports Type:Cycling,Night Cycling Pattern:Solid Package included: 1x bicycle computer lightweight high quality durable portable easy to carry