Welcome to our store！</br> 1、1. Waterproof protection. Immerse in the water for a short time, it is fine in light rain or heavy rain, but it is not recommended to rain for a long time, so as to prevent water from causing accidents. 2、 2. 300 seconds without signal input, screen display will enter standby mode, clock retention. 3、 3. If there is a traffic signal input or press any key, it can revert to the shutdown mode and memorize the data before shutdown. 4、 4. Compact appearance design, multi-function stopwatch is economical and practical. 5、 5. Including: 1 x Bike Speedometer+1 x Manual+1 x Induction Magnet+1 x Battery+1 x Base + Cable Sensor Material: plastic Language: English Screen size: about 1.5 inches Battery: AG10 * 1 Stopwatch size: about 44 * 49 * 15mm/1.7*1.9*0.6inch Features: 1.SPD CURRENT SPEED / Driving speed 2.ODO ODOMETER / Total mileage 3.DST TRIP DISTANCE / Mileage per trip 4.MAX MAXIMUN SPEED /Max driving speed 5.AVS AVAAGE SPEED /Average speed 6.TM ELASPED TIME / Driving time 7.CLK CLOCK / (12H / 24H) Clock 8.SCAN / Automatic cycling function 9. &quot;+&quot; &quot;-&quot; COMPARATOR / Contrast reminder function 10.SEETING SPEED SCALE (KM / M) / Kilometers and miles settings 11.SEETING TYRE CIRCUMFERENCE / Tire circumference setting 12.SEETING THE LAST VALUE OF ODOMETER / Initial setting of total mileage 13.FREEZE FRAME MEMORY / Driving data sampling function 14.AUTO ON / OFF /&nbsp;Switch 15.MAINTENANCE ALERT / Maintenance reminder function 1 x Bike Speedometer 1 x Manual 1 x Induction Magnet 1 x Battery 1 x Base + Cable Senso Satisfaction - Our customers are our top priority. If you find any product problems after receiving the goods, such as damage and incorrect quantity of goods, please contact the seller immediately. We try our best to provide you with satisfactoryaftersalesservice</br>