Product Description Real-time display of current speed, travel distance, riding time, travel time, calorie consumption and current time. Easily view the maximum speed, average speed, total riding time, total riding distance, and wheel revolutions per minute. Kilometer/mile length unit options. Multi-purpose bicycle/motorcycle (4"-40"). Modern appearance, waterproof and portable. Real-time display of acceleration or deceleration, easy control of your speed. Function: SPD CURRENT SPEED ODO ODOMETER DST TRIP DISTANCE MXS MAXIMUM SPEED TM ELAPSED TIME + COMPAPATOR AVS AVERAGE SPEED SETTING SPEED SCALE (km/h,m/h) SETTING TYRE CIRCUMFERENCEOmm9999mm SETTING THE LAST VALUE OF ODOMETER FREEZE FRAME MEMORY CLK CLOCK 12H/24H AUTO ON/OFF SCAN MAINTENANCE Battery: 1 x AG13/LR44 button battery (included) Package Included: 1 *Speedometer 1* Bracket (with 85 cm cable) 1*magnet 6*cable tie Note: 1. The sensing distance between the probe and the magnet frame is 5-10mm 2. Due to the different monitor and lighting effect, the actual color of the item may be slightly different from the color shown on the pictures. 3. Please allow 1-3cm error due to manual measurement. (1 inch = 2.54 cm) Thanks for your support :) Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.