Time calendar function: display year, month, day, hour, minute, second, week, 12 / 24 hour optional Quantity: 1 x Stopwatch Timer You can view the fastest, slowest, and average values when you search for memory data, you can check it up and down each function is easy to use is Our Great Passion: Your satisfaction is%! please be free to us you are not satisfied for any reason The power can be turned off and the clock does not need to be reset