1.The sound will come out when you touch letters or speak icon.
2. In the word card if you touch speaker icon you can see unspeaker icon it will on/off sound.
3. In the word card if you touch left & right arrow the image will change.
4. When you touch image, the sound will come out also.
5. In writing practice, you can practice writing hangul letters with your fingers.
You can change the color , thickness and practice the consonants and vowels.
6. In BTS songs, you can repeat Korean lyrics repeatedly by selecting five songs.