Specifications: Multifunctional wired cycling computer, include ambient temperature display, speeding alert feature, clock function, stopwatch function, etc. A big screen design and super wide working temperature. Simple installation and easy setting. Stylish design outside light, water proof design, portable, easy to disassemble. Header separate design makes it remove at any time. The head can be rotated to facilitate the installation of the crossbar/vertical handle. The code table highlighted white display at night. With A car/B car data selection which can set two wheels and two sets of data. Double four window display makes it easily to view the data without frequent adjustment button. Functions: Dynamic display of mileage, cycling time, real time speed, travel time, calories consumed, current time, current date, automatic shutdown function. With 12/24 hour clock, Celsius/Fahrenheit temperature unit selection, calendar feature that allows you to travel more to grasp. Low battery voltage tips, so you keep abreast of the work of the code table. A stopwatch function allows you to accurately grasp the contest. Item Name: Odometer Material: Rubber Quantity: 1Pc Powered by: 1 x 2032 Button Battery(Included) Features: Wired, Large LCD Display, Backlight, Easy to Use Suitable Wheel Diameter: 10cm 99.99cm/3.97" 39.37" (Approx.) Size: 55mm x 46mm x 18mm/2.17" x 1.81" x 0.71" (Approx.) Notes: 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. Package Included: 1 x Bike Computer 1 x Transmitter + Mounting Bracket 1 x Magnetic Sensor 1 x Sticker Pad 1 x User Manual