1. Uses imported sensor stable ability and accurate speed wide working temperatures 2.Glow-in-the-dark function uses cool light source white light high brightness average light source and soft light convenient for night use 3.Double row four window display convenient to get the data; Dynamic display mileage cycling time real-time speed and travel time calories burned the current time the current date; fastest speed average speed the total driving time and total mileage the current temperature wheel revolutions per minute at any time . 4. Speed-up and speed-down dynamic indication; Over speed remind function for safer riding; 5.12/24 hour system Celsius/Fahrenheit temperature unit choice calendar stopwatch function metric/imperial unit selection very practical; 6.Vehicle refueling/maintenance tips ensure your car's best performance and life span; 7. Uses high capacity Lithium Ion battery one battery is 4.3 times higher capacity than ordinary battery 8. Battery low voltage prompt; 9. Environment temperature and humidity display and clock function; 10. Auto power off function; 11.Easy to install convenient to set; Header separate design rotary and rain-proof design portable and easy to remove Have you ever calculated how fast you can drive or how long you drive everyday? May be you want to calculate but you do not have such kind of tool and the traditional watch is not so accurate. If so you should pay special attention to this multifunction waterproof bike computer. This cycle computer is so powerful in its functions. It can calculate the current speed the maximum speed the trip distance the total distance the average speed and so on. - Color: Black + Red - Material: Plastic + Magnet - 1.7" LCD display - Powered by 1xCR2032 battery (included) - Features scan timer and clock function - Measures and shows the following information: - DST (Riding distance) - ODO (Accumulated trip distance) - CAL (Calorie consumption) - RPM (Rotations per minute) - SPD (Riding current speed) - MXS (Riding maximum speed) - AVS (Riding average speed) - Easy to installation all mounting accessories included - Comes with English/Chinese manual