You can see how nice and small it is, considering that it has 5 pill containers on the bottom, each of which is big enough for me to put in all my medication for a day. That means I only have to load it up every 5 days. That may not work for some people, I know, but you can always put in one dose per container.
When the alarm goes off, you have to rotate the bottom half of the pill box to make it stop. In other words, you actually have to open the pill box and hopefully take the pill, otherwise the alarm will go off again. This is very helpful for people like me who forget in the course of turning the alarm off whether they have taken the pill or not!
Since I want to keep it with me all the time, I made this little purse for it out of the back pocket of an old pair of jeans:
I can't recommend this product enough! I just love it. I haven't forgotten a pill since I bought it.