3M™ 6154 Littmann® Cardiology IV™ 聽診器，深藍色耳管，標準色聽頭 27 inch
3MTM 6154 Littmann® Cardiology IVTM 聽診器，深藍色耳管，標準色聽頭，27吋
- Outstanding acoustics with better audibility of high-frequency sounds (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 one tube eliminates the rubbing noise of tradional double tubes.