It is an application to record voices with photos. People in the photo move their mouth according to the volume of the voice. Those that are not the face of a person do not work well. However, if it is recognized as a face even if it is not a photograph of a real person, it will also work with paintings. Other · Face facing sideways may not work well. · Face with bearded may not work well. · Recording in a place with a lot of noise may not work well.