Heartbeat Earpiece

German doctor's stethoscope, Riester Duplex 2.0Riester Duplex, high quality, designed with a modern design fashionable suitable for doctors. The stethoscope is expertly designed to be sensitive to all sounds. The stethoscope is suitable for all medical specialties: pediatrics, internal medicine, cardiology. Suitable for use with adults and children, as it is designed with dual-direction listening capability. I bought it for 170, I want to sell it for 129