* A motion recognition sensor (FIT-TAG) is required to use the app. *FIT_TAG (motion recognition sensor) purchase link:https://smartstore.naver.com/gatewaysRealistic content that trains the core muscles, which are the root of the body muscles, to perform exercises to protect the health of the waist and the whole body1. 7 types of training content - Exercise with an on-screen instructor - Maintain correct posture with indicator -Adjust the level of difficulty to suit your body2. 3 core exercise games to enjoy while doing core exercises - Tower Maker -Delivery Man -Wire Walking - Difficulty level gets harder as you play the game - Obtain pieces when clearing the game3. Training progress at a glance4. Intuitive UI that is easy to use