Heart to Voice (H2V) is a voice-based AI model that detects changes in heart failure risk early using only about 10 seconds of voice data. Through AI technology that combines voice with 9 clinical indicators for heart failure, it analyzes a patient’s condition with an accuracy (AUROC) of 0.95 and predicts changes based on each patient's personalized baseline. In addition, H2V provides personalized health management guidance based on the analysis results, enabling continuous monitoring and care.