The German manual is small, but with pictures and easy to understand. The clock has a few settings: date, alarm, hourly ringing of the week and the time. The time you can have a look at the 12 or 24 hour time. In addition, it has a stop function. A lighting option is also available. The settings can be adjusted very well with the help of the imaged instructions.
The clock should only be exposed to temperatures between 10 and 40 degrees. So not suitable for extreme sports in icy heights.
The boys and teens they find cool. To me they would be much too bulky, but for strong men's hands, it is well suited. An office clock that is not safe, but to look nice for sports and leisure.