Using the updated Soundcore app, the Liberty Air 2 Pro, offers users HearID 2.0, the next generation in audio frequency customization. After performing a simple hearing test with the earbuds, the Liberty Air 2 Pro tunes the sound for the individual to ensure the best possible listening experience. New to version 2.0, users can make changes to these individualized audio settings, or can choose from one of the preset sound profiles.