A high quality stethoscope is characterized by a high mass chest piece, as the chest piece should remain at rest in relation to the vibrating body. A high mass produces a high inertia and thus reduces the vibrations of the chest piece. This results in a better audibility of high frequency sounds, especially in the auscultation of heart sounds. The stainless steel chest piece is CNC-milled from solid material and guarantees with finest mechanics for excellent sound characteristics due to the perfectly tuned mass proportion of chest piece to diaphragm. Our new binaurals with unique SOFTBUDS ear tips in sound insulating design guarantee perfect auscultation without any interfering background noises as well as a pleasant wearing comfort. SOFTBUDS ear tips adapt optimally to the auditory canal and prevent any disturbing background noises. Nevertheless, the binaural can be moved noiselessly. The SOFTBUDS fit comfortably in ear and are easy to clean and replace. The LuxaScope Sonus CX is supplied with each 1 pair of SOFTBUDS in size S/M/L for the most pleasant wearing comfort.