Riester electronic stethoscopes

The ri-sonic Electronic Stethoscopes provide seamless analogue and digital integration, giving healthcare professionals the flexibility to capture and transmit body sounds in a variety of clinical settings. It converts acoustic signals from the patient into clear electronic output for listening, recording, or further analysis using compatible third party software.

Manufactured by Riester, the ri-sonic combines precision engineering, durable construction, and dependable German quality to support everyday professional use.

ri-sonic product family

Available configurations include:

3.5 mm analogue jack – for direct acoustic connection
USB-A and USB-C digital variants – for PC and tablet connectivity
iOS adaptor option – for compatible Apple devices
Cable length options – 1.4 m, 1.8 m, or 4 m, plus coiled versions for mobile applications

(All variants share the same high-sensitivity sensor and A/D converter design as detailed in the IFU.)

ri-sonic® PCP-1 (3.5mm Audio Jack TRS)

An analogue stethoscope with a chest piece that connects via a 3.5mm microphone port. Compatible with PCs, tablets, or Android devices (only when paired with eMurmur software).

ri-sonic® PCP-USB (USB-A)
A USB-A electronic stethoscope featuring a chest piece with an A/D Converter, Encoder, and USB interface for direct input to a PC or mobile device. For iOS compatibility, eMurmur software is required, and either a USB-A Female to USB-C or USB-A Female to Lightning adaptor is necessary.

ri-sonic® PCP-USB (USB-C)
A USB-C electronic stethoscope equipped with a chest piece that includes an A/D Converter, Encoder, and USB interface. Designed for modern USB-C-enabled PCs and mobile devices, offering advanced compatibility and ease of use.

Riester ri-sonic PCP-USB (USB-A with Coiled Cable) Web

ri-sonic® PCP-USB (USB-A with Coiled Cable)
A USB-A electronic stethoscope with a coiled cable for added flexibility and durability. The chest piece features an A/D Converter, Encoder, and USB interface, suitable for direct connection to PCs and mobile devices. For iOS compatibility, eMurmur software is required, along with either a USB-A Female to USB-C or USB-A Female to Lightning adaptor.

Features · Advantages · Benefits

Feature	Advantage	Benefit
Full audio spectrum (20 – 2,000 Hz)	Captures the complete range of auscultation sounds within human hearing range with high signal fidelity.	Enables accurate listening and interpretation of subtle auscultation sounds.
Seamless analogue & digital integration	One device family supporting both digital and analogue workflows.	Flexibility to use the same stethoscope at the bedside, in teaching, and within telemedicine environments.
Versatile configurations	Available with 3.5 mm analogue, USB-A, USB-C, and iOS adaptor options in multiple cable lengths (including coiled).	Adapts easily to varied clinical, educational, and telehealth setups.
Integrated A/D converter (digital models)	Converts acoustic signals directly into a digital waveform without quality loss.	Provides consistent playback and analysis quality on connected devices.
USB-powered operation	Draws power from the host device – no batteries or charging required.	Continuous operation with minimal upkeep.
Medical-device-grade construction	Engineered to meet safety and performance requirements (Protection Class II, Type BF, IP22).	Reliable performance and straightforward cleaning/disinfection for daily clinical use.
Noise-optimised and shielded design	Reduces environmental interference and preserves low-frequency detail.	Ensures dependable sound capture in busy or noisy environments.
Class IIa medical device	Compatible with approved digital auscultation platforms and pathological murmur-detection software.	Enables clinicians to use a cleared, regulated medical device within advanced digital workflows for confident, compliant auscultation analysis.
Maintenance-free construction	No calibration or servicing required.	Minimises downtime and total cost of ownership.
Education-ready	Supports recording and playback in teaching and simulation environments.	Facilitates student training, supervision, and remote mentoring.

Enhanced digital auscultation

Amplified and enhanced auscultatory sounds with high signal clarity and sensitivity, providing an improved electronic auscultation experience for the clinician.

Easy to use

Ergonomic design with no buttons or dials that can be connected to third-party telemedicine stations, PCs, or mobile devices, giving full flexibility of use.

Improved communication

Auscultate anywhere — in clinic, at home, remotely, or on the go — providing complete flexibility in application and potentially reducing cost, time, and access barriers. Enables the sharing of recorded auscultations with specialists and other providers that may support improved clinical collaboration when paired with a third-party auscultation software provider.

Better understanding of diagnosis

By using the ri-sonic® with third-party telemedicine or digital auscultation software, clinicians can record and share auscultations with specialists and track patients over time, providing evidence-based assessments that may support improved diagnostic confidence.

Improved care in remote areas

Combining the ri-sonic® with mobile devices and third-party telemedicine platforms enables remote auscultations, improving the patient experience by reducing travel, appointment time, and enabling more frequent monitoring where needed.

Reducing the burden

Reduces uncertainty by providing reassurance in diagnosis between the provider and the patient, supported by recorded and reviewable auscultation data.

Product details

ri-sonic® electronic stethoscope

Mode of Operation	This product may be used in continuous operation.
Electrical Operation	Class II protection against electrical shock.
Auscultation Bandwidth / Frequency range	20 - 2000 Hz
Classification	Type BF applied part
Weight	ri-sonic® PCP-USB with cable: 180 g ri-sonic® PCP-1 with cable: 145 g
Operating Conditions	5 °C to 40 °C at a water vapor pressure up to 50mbar a relative humidity range of 30% to 75%.
Start up time	Instant. Please note, there is no minimum time required for the unit to warm up from minimum storage temperature or to cool down from maximum storage temperature before use.
Storage and transport conditions	-25 °C to 35 °C, >35 °C to 70 °C at a water vapor pressure up to 50 mbar with a relative humidity range of 0% to 90%.
Air pressure	700 hPa to 1060 hPa.
Maintenance / Accuracy check / Calibration	The ri-sonic® PCP-USB / ri-sonic® PCP-1 Chest Piece requires no preventive inspection, no preventive or routine maintenance, and it does not have to be calibrated.
Warranty	2 years from the date of purchase on all defects, which can verifiably be shown to be due to material or manufacturing faults. Please note, a warranty claim does not apply in the case of improper handling.

For further information on technical specifications and electromagnetic compatibility please refer to IFU: Art. No. 75042 Instructions of use ri-sonic® PCP-USB / ri-sonic® PCP-1 Stethoscope.

Ordering information

ri-sonic® digital stethoscope and accessories

ART. NO.	REGION	DESCRIPTION
4300	All	ri-sonic® PCP-USB, USB-A Connector; 1.8 m Cable, Polyethylene Bag in Plain Box
4301	All	ri-sonic® PCP-USB, USB-A Connector; 1.8 m Cable, Retail Box
4304	All	ri-sonic® PCP-USB, USB-A Connector; 4 m Cable, Polyethylene Bag in Plain Box
4305	All	ri-sonic® PCP-USB, USB-A Connector; 4 m Cable, Retail Box
4306	All	ri-sonic® PCP-USB, USB-A with coiled cable, polythene bag in plain box
4307	All	ri-sonic® PCP-USB, USB-C Connector; 1.8 m Cable, Retail Box
4309	All	ri-sonic® PCP-USB, USB-A Connector; 1.8 m Cable, Retail Box, with IOS Lightning adapter
4310	All	ri-sonic® PCP-1, TRS Audio Connector; 1.4 m Cable, Polyethylene Bag in Plain Box
4311	All	ri-sonic® PCP-1, TRS Audio Connector; 1.4 m Cable, Retail Box
4313	All	ri-sonic® PCP-1, TRRS Audio Connector; 1.4 m Cable, Retail Box
4315	All	ri-sonic® PCP-1, TRS Audio Connector; 1.4 m Cable, Retail Box, with TRS to USB-C Adapter
4317	All	ri-sonic® PCP-1, TRRS Audio Connector; 1.4 m Cable, Retail Box, with TRRS to USB-C Adapter
4320	US	ri-sonic® PCP-1

Riester electronic stethoscopes

ri-sonic product family

Designed and optimised for Telemedicine use

Features · Advantages · Benefits

Outcomes for doctors/HCP and patients

Outcomes for doctors