SC23 Classic Type Dual Head Stethoscope Adult The SC23 Classic Type Dual head Stethoscope Adult is an acoustic medical device for auscultation, or listening to internal sounds of an animal or human body.. A stethoscope can be used to listen to the sounds made by the heart, lungs as well as blood flow in arteries and veins. Colours available White, Pink, Grey and Black Suitable for doctors, nurses, mothers, students etc. Main performance 100 Hz ~ 500 Hz as the reference of the testing sound source: Outer diameter of auscultation head ≤ 35 mm, damping ≤ 30 dB Outer diameter of auscultation head > 35 mm, damping ≤ 16 dB 500 Hz ~ 1000 Hz as the reference of the testing sound source: Outer diameter of auscultation head ≤ 35 mm, damping ≤ 25 dB Outer diameter of auscultation head > 35 mm, damping ≤ 20 dB
