3M™ 6152 Littmann® Cardiology IV 聽診器, 黑色耳管，標準聽頭 27吋

 3M™ 6152 Littmann® Cardiology IV 聽診器，黑色耳管，標準聽頭，27吋

- Outstanding acoustics with better audibility of high-frequency sound (adult side, firm pressure)

- Tunable diaphragm: Hear high or low frequency sounds by slightly adjusting pressure on the chestpiece

- Dual-lumen tubing: Two sound paths in on tube eliminates the rubbing noise of traditional double tubes