HIGH PERFORMANCE. The ultra-sensitive diaphragm secures excellent acoustic transmission of heart and lung sounds. Also, provides consistent high acoustic sensitivity from stainless steel chest piece and conducts high quality sound. Reliable and effective in monitoring, assessment and diagnostics. COMFORTABLE. The non-chill ring gives patient a warm and comfortable assessment. The soft-sealing ear piece and flexible tubing  provides comfort and ease of use for the practitioner and the patient. Ideal for longer hours of use. CLASSIC, SLEEK DESIGN. The stainless steel coupled with a black design gives off a professional look perfect for use of any healthcare professional. Not only sleek in design, but also high quality in terms of function and durability. LATEX FREE. The soft-sealing ear piece and tubing material is latex free. Along with safety, it provides a nice acoustic seal for excellent hearing and a comfortable fit. EASY TO CLEAN. Tubing material is produced with resistance to skin oils and alcohol to enable longer tube life. Easy to clean with 70% alcohol and less likely to pick up stains.