Bicycle Cycle Computer Cyclometer Speedometer 15 Functions. This is a great tool for its price, This Bike Computer Odometer Speedometer has many useful functions, It is also very durable even after thousands of mile usage, The battery lasts for several thousand miles, It helps in tracking your training progress in real time, Easy operation and durability, makes it popular with riders, You can control your riding every moment, No back light. FUNCTIONS: SDP : CURRENT SPEED, ODO : ODOMETER, DST : TRIP DISTANCE, MXS : MAXIMUM SPEED, AVS : AVERAGE SPEED, TM : ELAPSED, TIME CLK : CLOCK (12H/24H), SCAN "+""-" COMPARATOR SETTING SPEED, SCALE(KM/H.M/H), SETTING TYRE CIRCUMFERENCE:(0MM-9999MM), FREEZE FRAME MEMORY, AUTO : ON/OFF and more.... INCLUDED: 1 X SPEEDOMETER