Perfect Auscultation through research and developmentInnovative acoustic system with extraordinary auscultation for all frequency ranges• High-precision double chest-piece made of stainless steel.• Bilateral special membranen for precise acoustics, Ø 44 mm and 32 mm, with novelnon-chill rims for improved adaptation on the skin.• Anatomically shaped binaural with internal multiple spring for adjusting the contactpressure.• Extra-soft, replaceable and pivotable ear-tips for perfect sealing at the ear canal andenhanced wear comfort.• Y-tube with separate sound-conducting pathways for the left and right ear withparticularly good audio-transmission.• Total length: 71 cm