The MedCenter System was designed by two sons to ensure that their father took his medication regularly. He is doing so now and you will also when you use this system. 31 individual boxes, each with 4 pill compartments sit in a frame. In the beginning of the month you can put the pills into each compartment. Each day you take out the box corresponding to that day. The talking combination pill reminder timer with 4 alarms and talking clock, either beeps or speaks, "Please take your pills" when the alarm goes off. Setting the alarms and time is straightforward and there is voice guidance. Entire unit measures about 7.5" x 7.25" x 10". Uses 2 "AA" batteries (INC).