, Clear Display: High resolution, backlit display is easy to read even in direct sunlight or in the dark. With the touch of a button, you can scroll through the different functions.High-precision data: Improved new programs and optimized chip materials allow you to reliable data on speed (DSP, , ), distance (ODO, DSP), time and more on every .Automatic function: If you do not press any button in the power-on state and drive forward 5 meters, the bicycle computer will automatically wake up wirelessly and remember the previous value.Low battery reminder: When the voltage of the sensor or bicycle computer is lower than 2.5V, a low battery reminder symbol will appear to avoid sudden stop working. Just replace the battery in time to work again.Comes with Battery and Installation Instructions: This bicycle speedometer includes detailed installation instructions (English), CR2032 battery and other accessories for easy installation.Note:This bicycle computer is not suitable for electric bicyclesMaterial:ABSSize:5.6x4.1x2 cmPackage Contents:1 * Cycling Computer1 * Wireless sensor1 * 4 * Plastic tie-wrap1 * Elastic1 * CR2032 battery1 * 23A battery1 * Magnet1 * English User manual