Wired Bike Speedometer Waterproof Round Shaped Bike Computer Backlight Screen Cycle Odometer Perfect for daily Cycle, this bicycle computer records every moment of your ride. With its IP67 waterproof properties, the bicycle computer ensures reliable performance under adverse weather and road conditions. Features: The bike computer is made of premium material, lightweight, sturdy for long time use.  Powered by one button battery, energy-saving deisgn can offer you a long working endurance. The sensor is super sensitive and can work in wide range of harsh weathers and temperatures.  Comes with necessary accessories, the bike speedometer is easy to install or disassemble, good accessory for riding lovers. Large LCD dispaly supports bright backlight, can make you read readings clearly in both day and night, convenient e. This bike computer is multifunctional, it can show you data of riding speed, total mileage, single mileage, average speed, max speed, riding time, calories, temperature, etc. Specification: Material: ABS Waterproof: IP67 Battery capacity: 200mAh Size: 5.6*5.6*2cm Weight: 88g/ 3.1oz Package list: 1 * bike computer 1 * wired sensor 1 * manual 1 * magnetic head 5 * cable ties