One of the most recognized emblems of the medical profession has been upgraded to offer unparalleled audible clarity, precise aesthetics, enhanced overall durability, and open-bell versatility. The Littmann Cardiology IV stethoscope features an improved single-piece tunable diaphragm that produces better sound quality, even at higher frequencies. The precision-machined chest piece is shaped with fewer angles making it more aesthetically pleasing. Next generation tubing improves resistance to skin oils and alcohol, making it less likely to pick up stains for longer tube life. Convert the pediatric side to a traditional open bell by replacing the single piece diaphragm with a non-chill sleeve.