Stethophone Pro is an electronic stethoscope that enables detection, amplification, filtering, and transmission of auscultation sound data (heart and lungs), whereby a clinician at one location can listen to the auscultation sounds of a patient acquired on site or at a different location. Stethophone Pro is intended for use on adult patients. Stethophone Pro is not intended for self-diagnosis and not intended to be used as a sole means of diagnosis. Stethophone Pro can be used in clinical and nonclinical environments.
For Rx-only: Stethophone Pro is intended to provide decision support to clinicians in their evaluation of patients' heart sounds. The software analyzes heart sounds and phonocardiograms and can automatically detect murmurs that may be present, sound timing and character, including S1, S2, and the absence of a heart murmur. The interpretations of heart sounds offered by the software are not diagnoses and are meant only to provide decision support to the clinician, who may use the result in conjunction with their own evaluation and clinical judgment.
For OTC: When used without access to the automatic analysis feature or under supervision of healthcare professional, Stethophone Pro is also intended to be used by lay users.
Cardiac sound is an immediate and information-rich reflection of heart function. Subtle changes in frequency, timing, and amplitude often reveal early signs of structural or rhythmic dysfunction long before symptoms appear.
Stethophone Pro employs a proprietary form of machine learning called AI phonoscopy to enhance, interpret, and visualize these cardiac signals. This process reveals patterns that may be missed during routine evaluation, particularly in early or intermittent disease.
Stethophone Pro models are trained on millions of heart cycles reviewed by experts in phonoscopy and structural disease. This combination of clinical expertise and data scale produces outputs that are reproducible, evidence-based, and clinically interpretable. Development focuses on sensitivity for early recognition while maintaining the specificity clinicians need to make confident decisions. Each model iteration is evaluated against expert-labeled datasets and independent validation studies, ensuring that the versions reaching the field meet clinical standards for accuracy and reliability.
Test characteristics of smartphone-enabled phonoscopy with artificial intelligence–enhanced detection of cardiovascular disease.*
Int J Med Sci Innov Res. 2025;10(5):18–32. Available from: www.ijmsir.com
All Murmurs
MS
MR
AS
TR
Every feature of Stethophone Pro is built around a single principle: reliability in real-world care. Development is guided by collaboration with global leaders in diagnostics and structural disease.
The platform’s bioacoustic models are trained and validated on diverse clinical datasets, supporting consistent performance across patient populations, comorbidities, and care environments. The underlying dataset includes millions of heart sounds corresponding to conditions confirmed by echocardiography.
This breadth ensures that model behavior is grounded in clinically confirmed variation rather than narrow or idealized samples, improving both sensitivity and specificity in general practice.
Aortic stenosis and regurgitation
Mitral valve prolapse and regurgitation
Tricuspid and pulmonary valve disorders
Atrial fibrillation
Bradycardia and tachycardia
Heart blocks and conduction disorders
Hypertrophic cardiomyopathy
Dilated cardiomyopathy
Congenital heart defects
Heart murmur evaluation and characterization
Post-surgical cardiac monitoring
Pericardial disease assessment
Stethophone Pro records sound with a near flat frequency response across the full spectrum of cardiac and thoracic signals. All incoming sound is captured without artificial emphasis or suppression.
Recordings undergo automated medical quality checks at the moment of capture. The system identifies and removes artifacts such as handling noise, transient clicks, or signal shifts that interfere with interpretation.
These steps preserve diagnostic value and ensure that downstream analysis reflects true physiology rather than contamination or distortion.
improvement in diagnostic audio quality
Traditional listening is limited by human hearing and makes certain frequency ranges difficult to perceive simultaneously. This has historically introduced subjectivity into decision making.
Stethophone Pro removes this barrier through patented signal processing that preserves medical accuracy and nuance. The audio presented to clinicians is clear and balanced, making subtle structural or rhythmic findings easier to confirm and communicate.
The system provides immediate, high-sensitivity murmur detection capable of identifying soft or faint signals often associated with early to moderate structural disease. Murmur indicators are mapped directly onto synchronized visual playback tools that show both audio and graphic representations of the heart cycle.
Intervals, rhythm features, and arrhythmia patterns are analyzed simultaneously and displayed in a clinically intuitive format. Outputs are securely shareable to support provider to provider collaboration or remote patient transmission, enabling faster review and more coordinated care.
Peak sensitivity and specificity
exceeding
Cardiac cycle analysis accuracy exceeding
Stethophone Pro can be deployed to thousands of clinicians, frontline workers, or patients at home with a simple download.
These capabilities allow health systems to introduce structured cardiac data at scale without the operational or infrastructure demands associated with traditional devices.
Speak with a Stethophone Pro specialist about a solution designed for your organization.
