- Rich content
Listen to the ring sound, a representative speech sound across all frequency bands
Listen to over 3,000 high-frequency words derived from 40 Korean consonants and vowels
Listen to over 1,000 sentences on 10 topics you encounter in your life, such as when shopping, going to the hospital, or going to a restaurant.

- Customized learning according to listening level
Choose your speech speed!
Select male or female voice!
Repeat listening to sounds you heard incorrectly until you hear them correctly!
Provide learning progress feedback with apple trees and graphs!

It is with you anytime, anywhere.
If you are a cochlear implant user, experience differentiated listening training at ‘Ieum’.