Features: Real-time display: Current speed, riding time, riding distant and current time and date. Show data: View the Average/Maximum speed, Accumulated distance/ RPM/Calories consumption, Accumulated time/Trip time, Temperature/Date. Back light: LCD display with back light allows you to read riding data easily and clearly during night trip. Convenient: Buttons control for easy operation. Small size, lightweight and easy mount on your bike. Stopwatch for you to check the data in competitions. Unit options of kilometer / mile, 12h / 24h systems, Celsius / Fahrenheit temperature systems. 14 Functions: Date and Time(DA) Temperature(Th) Riding speed(SPD) Maximum riding speed(MAX) Average riding speed(AVS) Riding distance(DST) Accumulated distance(ODO) Calories(CAL) RPM Riding time(RT) Riding accumulated time(RAT) Trip time(TT) Stopwatch LED back light KM/MM, C/F, 12h/24h conversionSpecification:Material: Plastic Model: Wire / Wireless (optional) Power: 1*CR2032 Size: 5.5 * 4.3 * 2cm / 2.1 * 1.6 * 0.7inHost weight: 30g / 1.0oz Package weight: 64-71g / 2.2-2.5ozPackage List:1 * Bike Computer1 * Magnet1 * Wire Sensor Cable5 * Ribbon