3M Littmann 2161 Master Cardiology Stethoscope with Special Finish All Black provides the best acoustics in the Littman range. The 3M Littmann Master Cardiology Stethoscope is the pinnacle of acoustic excellence in the Littmann stethoscope range. This instrument delivers superior performance in critical healthcare settings and is designed to be used on adult, infant, and paediatric patients. Features: • Experience the highest level of acoustic performance among Littmann mechanical stethoscopes • With its sleek black tube, stainless steel chestpiece, and headset, the 3M Littmann Master Cardiology Stethoscope exudes professionalism • Easily switch between high and low-frequency sounds by simply adjusting the pressure on the chestpiece - no need to turn over or reposition the chestpiece like two-sided models • The non-chill rim ensures a gentle and comfortable examination experience for patients • Dual-lumen tubing combines two sound paths into one tube, eliminating the rubbing noise often associated with traditional double tubes • Adjustable headset • Angled ear tubes align perfectly with ear canals • Durable tubing retains its shape and flexibility even after folding • Tubing is free from phthalate plasticisers, enhancing its resistance to skin oils and alcohol while reducing the likelihood of stains Specifications: • Chestpiece weight is 90 g • 5.1cm Diaphragm diameter • Diaphragm made from epoxy/fibreglass • Eartip type: Soft-sealing • Extra eartips are not included • Model: Master Cardiology • Net weight is 185 g • Designed for adult, infant, and paediatric patients • Overall length is 69 cm