Constructed from premium-grade stainless steel, the MDF 777 MD OneStainless Steel Dual Head Stethoscope is one of the most widely sought afterprofessional diagnostic scopes today. MD One provides accurate auscultation ofheart, lung and blood pressure sounds as well as overall durability andaesthetics. Chestpiece: Thedeluxe adult stainless steel MD One Dual-Head Chestpiece and full-rotationAcoustic Valve Stem are precisely machined for the highest performance anddurability. The Diaphragm is fitted with ultra-sensitive Diaphragm sealed bythe non-chill Diaphragm Retaining Ring to provide a secure acoustictransmission. The extra large Bellcrowned with a non-chill Bell Ring provides greater acoustical amplification,isolation of low frequency sounds and offers patient''s comfort. ErgonoMax Headset:Machined and polished stainless steel tubes, enclosed internal spring and MDFComfortSeal Eartips are designed for long lasting comfort and high performanceacoustic transmission. Acoustic Tubing:Heavy-walled and internal acoustic pathway in the Y-configuration, the tubingis designed to maintain acoustic integrity. Acoustic Tubes are constructed ofnon-cracking, non-sticking high-density latex-free PVC. Color Available: Backอ่านเพิ่มเติม