Manburen Ms-602b Sensors LCD Backlit Bicycle Speedometer Odometer Computer Rainproof Real-time display of the current speed, trip distance,riding time, trip time, current time Night light feature with high-brightness light source for a clear vie of all data during your night trip Length unit Option of kilometer/mile Option of 12th/24th system and Celsius/Fahrenheit temperature systems for you to have your trip in control Speeding reminder for safer cycling