For those who want to know exactly, the countdown timer helps remind special or recurring events by emitting an acoustic signal at the set time. It then automatically counts back from the preset time. The time can be set in minutes and up to 24 hours in advance. This function is particularly practical for daily use of medications or interval training. The daily alarm reminds you of daily recurring events, where an acoustic signal sounds at the set time. This model has five independent alarms - especially practical for daily use of medicines or for keeping regular appointments.