Although audio receivers are used for tour guides and tour commentaries, communication distance is greatly limited.
There is no need to separately prepare the guide's transmitter and the tourist's receiver.
Users of MOLI can listen (play) repeatedly in Audio/Text of one-time delivery of tourist information that is easily missed or forgotten.
MOLI doesn’t have the limit on a number of users.
MOLI can be used from a long distance without the restriction of distance, so it solves the inconvenience of having to move together as a group during the tour.