This is a Braun alarm clock / weather station. The station has a sensor you can hang up outside. Then you can see the weather forecast inside. Black model with digital display. You can choose between 12:00 or 24:00 hrs. display. Lot's of other functions. The clock is Radio controlled. No need to change between Summer and Winter time anymore. The clock and sensor operate on 2 batteries. The clock on 2 AA (Penlite) and the sensor on 2 AAA.