Wireless Bike Computer 3.3 Inch LED Digital Bicycle Speedometer Odometer Multifunction Cycle Computer Waterproof with Backlight Support Auto Wakeup Scan for Mountain Road Bike Features: Wireless Cycle computer that can display rich data during training, such as mileage, speed, temperature, stopwatch, calories, time, etc. 3.3-inch high clear digital screen, large font display, easy to view. With LED backlight, it is clear even at night or in low light. Built-in button battery, supports automatic sleep when parking and automatic wakeup when riding, saves energy and prolongs battery working time. High-quality ABS material, with nice durability, strong and high temperature resistant. Waterproof design, can be used normally even on rainy days. Easy to install, wireless design saves time and effort. It comes with a mounting bracket to make the angle more comfortable and improve riding safety. Specifications: Product Color: Black Backlight Color: Green Screen: 3.3 Inch Speedometer: 0-99.9KM/H or MPH Average Speed: 0-99.9KM/H or MPH Max. Speed: 0-99.9KM/H or MPH Odometer: 0-9999.9KM or Mile Tripmeter: 0-999.9KM or Mile Trip Timer: 9:59:59 Digital Clock: 12/24 Hours Selectable Bike Computer Battery: 1 * CR2450(3V/520mAh) Transmitters Battery: 1 * CR2032(3V/240mAh) Waterproof: IPX4 Bike Computer Size: 100 * 61 * 18mm/ 3.9 * 2.4 * 0.7in Bike Computer Weight: 85g/ 3.0oz Package Size: 176 * 102 * 50mm/ 6.9 * 4.0 * 2.0in Package Weight: 180g/ 6.3oz Packing List: 1 * Bike Computer 1 * Wireless Transmitters 1 * Bracket 1 * Nut 1 * Rubber Pad 1 * Magnets 4 * Nylon Cable Ties 1 * Manual 1 * Installation Guide