A device includes: a controller that converts a pressure value detected by a pressure detector into visual or aural lingual pressure information changed depending on a magnitude of the pressure value； and an information output unit, such as a buzzer and a color display LED, that outputs the lingual pressure information in response to a signal from the controller. The information output unit outputs lingual pressure information different depending on a pressing force applied on an elastic balloon by a tongue, allowing users such as patients and elderly people to continue a training without being bored.
