A stethoscope specially modified to aid in listening to the sounds of the heart.
[cardio- + G. phōnē, sound]
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Stefan Sack confirms: "Vitaphone initially turned to Benefon since Benefon could offer a complete wireless instrument solution, enabling fast time-to-market for the Cardiophone service.
The new Cardiophone service is utilising a Vitaphone-specific Herz Handy(r) version of Benefon's new GSM+GPS wireless communication instrument Benefon Track, which is a unique combination of a full-feature GSM phone, GPS (Global Positioning System) receiver and Mobile Phone Telematics Protocol (MPTP).
The user places the back of the cardiophone on his chest and the ECG is registered.