Littmann's Pinnacle [Flagship State] ＜Littmann＞ Master Cardiology This is a top-of-the-line model that utilizes advanced ＜Littmann＞ technology. This item has been stored unused after purchase and has not been used clinically. As shown in the photos, there are no scratches from use. *Limited-time discount as I want to complete the transaction by the end of the year. ◆ By adopting a suspended diaphragm, you can switch between low-frequency and high-frequency modes by adjusting the pressure applied to the chest piece against the skin, allowing for continuous auscultation of low and high frequencies without switching. ◆ The rim uses a non-chill material that does not feel cold to the patient. ◆ Soft-sealing eartips securely hold the ears, preventing sound leakage and simultaneously blocking out surrounding noise. ◆ There is a small hole in the center of the diaphragm. This is opened to prevent pressure on the ears when the chest piece is pressed firmly and to improve the movement of the diaphragm. This is a unique feature of the Master Cardiology, which is of the highest quality (air-floating diaphragm specification). [A Word from the Shop Manager] This is the top-of-the-line model of Littmann, as everyone knows, and it is an exquisite item. The ＜Littmann＞ Master Cardiology has a sense of weight and dignity befitting the highest-grade model. The large diaphragm (51mm in diameter) and beautiful chest piece will greatly satisfy the doctors who use it. Recommended for doctors who demand the highest quality. We also receive orders from many people for gifts. (Quoted from https://item.rakuten.co.jp/panesian/c/0000000177/) The 3M Littmann Master Cardiology stethoscope provides high-quality sound. - Brand: 3M Littmann - Model: Master Cardiology - Color: Black - Material: Rubber, Stainless Steel - Accessories: Instruction manual, warranty Thank you for viewing. *Due to shipping costs, it will be packed and delivered without the box. If you need the box, please contact us via comment, and we will change the price to include the shipping cost. Thank you for your understanding.