Lixada Wireless Bike Cycle Computer Bicycle Speedometer Odometer with LED Backlight This wireless bike computer records your riding data and has many more functions. It is compact and lightweight, perfect gift for cyclist. Features: Monitors the riding data, including current speed, average speed, maximum speed, riding time, trip distance, and ODO meter. More functions: Stopwatch, 12/24 hour format, metric/imperial unit, auto on/off. Large LCD display with LED backlight allows you to read the data easily and clearly in darkness. 2 smart buttons for easy operation. Small size, lightweight and wireless design makes it a convenient choice for cyclist. Functions: Clock: 12/24 hour format Stopwatch Metric/imperial alternative Auto ON/OFF Current speed Average speed Max. speed Riding time Trip distance ODO meter LED backlight Specifications: Size: Approx. 7 * 4.5 * 1.3cm / 2.8 * 1.8 * 0.5in Weight: 33g / 1.2oz Package Size: Approx. 15.5 * 8 * 4.5cm / 6.1 * 3.1 * 1.8in Package Weight: Approx. 88g / 3.1oz Package List: 1 * Bike Computer 1 * Sensor 4 * Zip Tie 1 * Rubber Ring 1 * Computer Bracket 2 * Soft Rubber Slice 1 * Magnet 1 * User Manual