Time timer allows people (young children for example, or disabled people ...) who have no sense of time to visualize the passage of time. Because time is marked in red. In general, it costs excessively expensive, this one is a timer that perfectly replaces a timer Time. I use it a lot with my 6 year old daughter, "you relax in your room 1 / 2h" or "you get up in 5 minutes" or ... it becomes more manageable for her, because she sees how long it is ... and she prefers to do the ringtone when it's mom who decides she becomes more independent!
On a practical level, we must think about putting more time and go back to be on it sounds.
