Product features: - This speed and cadence sensor accurately track and transmit essential cycling data for you, giving you real-time monitoring of your outdoor exercise. - Display your current speed, average speed, max speed, time, trip time, distance, etc. - Able to set km/h or m/h unit, 12 hours or 24 hours clock mode by yourself. - Avoid electromagnetic interference from your phone or other radio signals. - Powered by one 65mAh AG10 battery. Ensure long-time endurance. - Lightweight and compact. A great tool for outside cycling. Specification: Battery: built-in 65mAh AG10 battery Riding time: ranging from 0:00:00 to 99:59:59 Bicycle spoke diameter: 2mm and less Operating temperature: -20 Deg.C to 70 Deg.C Package Included: : 1 x Bike Computer 1 x Mount with Sensor 1 x Magnet 1 x AG10 battery 6 x Ties 1 x English Manual Features 1.SPD CURRENT SPEED 2.ODO ODOMETER 3.DST TRIP DISTANCE 4.MAX MAXIMUN SPEED 5.AVS AVAAGE SPEED 6.TM ELASPED TIME 7.CLK CLOCK/(12H/24H) 8.SCAN 9."+" "-" COMPARATOR 10.SEETING SPEED SCALE(KM/M) 11.SEETING TYRE CIRCUMFERENCE 12.SEETING THE LAST VALUE OF ODOMETER 13.FREEZE FRAME MEMORY 14.AUTO ON/OFF 15.MAINTENANCE ALERT Note: Please allow slight size differs due to manual measurement. Due to the different display and different light, the picture may not show the actual color of the item. Thanks for your understand.