VoiceLove Digital Therapy for Delirium in the ICU

Inclusion Criteria: 1. Men and women aged ≥18 years admitted to the hospital after major surgery (elective or non-elective) require a hospital stay of at least five days following surgery, including an ICU stay for at least three days after the surgical procedure 2. At risk of delirium, as per ICU delirium risk score or existing diagnosis 3. Family members or caregivers involved in patient care at least 18 years of age. 4. Clinical team members caring for the patients Exclusion Criteria: * Patients in the ICU who have 1. a history of severe mental illness, 2. admission for a drug overdose, 3. severe vertigo, 4. a history of severe postoperative nausea and vomiting, 5. hearing or visual impairments, 6. preexisting severe dementia (Montreal Cognitive Assessment Score \<15), 7. neurological surgeries.