Feature:1. Small size ,lightweight and wireless design make it more convenient and easier to install and use.2. 2.8-inch high-definition large screen with LCD backlight allows you to read the data clearly at any time and any angle.3. High quality smart chip, stable performance and large memory capacity, thus the data will not lost when power is off.4. Real time recording, current speed, max speed, average speed, distance, total distance, temperature, calorie, stop watch.5. IPX6 grade waterproof, it can be used on rainy days.6. Button battery, longer life and lower power consumption.Specification:With this bicycle computer, every Cycle data is under control.Features:Small size, lightweight and wireless design make it more convenient and easier to install and use.2.8-inch large screen with LCD backlight allows you to read the data clearly at any time and any angle.High quality smart chip, stable performance and large memory capacity, thus the data will not lost when power is off.Real time recording, current speed, max speed, average speed, distance, total distance, temperature, calorie, stop watch.IPX6 grade waterproof, it can be used on rainy days.Button battery, longer life and lower power consumption.Specifications:Material: ABS + PMMAShell Color: Black / White ( optional )Backlight: Blue / Green / White ( optional )Screen Size: 60 * 45 mm / 2.4 * 1.8 inProduct Size: 80 * 54.5 mm / 3.1 * 2.1 inProduct Weight: 65 g / 2.3 ozPacking Size: 13 * 8 *4.4 cm / 5.1 * 3.1 * 1.7 inPacking Weight: 150 g / 5.3 ozPackage List: 1 * Bike Computer1 * Extension Bracket1 * Nut1 * Base1 * Transmitter1 * Magnetic Screw4 * Zip Ties1 * Rubber Pad2 * ManualPackage List:1 * Bike Computer1 * Extension Bracket1 * Nut1 * Base1 * Transmitter1 * Magnetic Screw4 * Zip Ties1 * Rubber Pad2 * Manual