The 3-in1- Light Up Potty Training Timer helps teach your little one when it's time to go! Just set the timer in increments of 20, 30, 60 and 90 minutes. When it's time, the trainer will light up and play a fun song to get remind your toddler that it's time to try to go potty. Potette 3-in-1 timer can also be used as a nightlight and as a lullaby soother.