Featuresr real time display of the current speed trip distance riding time trip time calorie consumption and current timer intelligent energy efficient backlight press any key at any time during 1700 and 0800 everyday the backlight will be on for 4 secondsr length unit options of kilometer mile options of 12h 24h systems celsius fahrenheit temperature systemsr a stopwatch for you to check the data in competitionsr a wide range of use on 4 40 bicycles electric bicycles o