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 wireless 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. - Easy installation all necessary mounts are included - Digital LCD display shows current time while standing by - Measures and shows the following information: SPD - Current Speed ODO - Odometer (total distance) DST - Trip Distance MXS - Maxmum Speed AVS - Average Speed TM - Elapsed Time RPM - Rotation Per Minute CLK - Clock - Supports both km/h and m/h units - Adjustable tire circumference settings - Automatic motion activated On/Off - Water resistent design (can be used while raining)