DoReMi / A cup

Sometimes the visually impaired run into a lot of problems in their daily life. Pouring water into a cup is one of them. I suggest the way that they can fill water into a cup easily and safely like others who can see that. DoReMi makes the visually impaired feel not only physically independent but also psychologically.
At first they have trouble putting water into a cup properly. After a lot of practices the blind can do it easily. DoReMi-cup plays the melody “Do, Re, Mi ~ Do” when the DoReMi-cup is filling with water so they can know how much has been put into the cup.