For patients with speech problems, we first recorded and preserved their voices, and used Vocofy AI technology to train a personal AI model to replicate their voice, tone, rhythm, pronunciation, etc., so that they can use the mobile phone APP to input text and "speak" with their own voice after surgery. Including: the elderly, Parkinson's disease, stroke, cerebellar atrophy, etc., patients with tongue cancer, head and neck cancer, etc.