https://www.ebay.com/sch/i.html?_nkw=3M+Littmann+6152+Cardiology+Iv+Stethoscope+Standard+Finish+Chestpiece+27+Black+Tube&_sacat=0&_dmd=2

3M Littmann 6152 Cardiology Iv Stethoscope, Standard-Finish Chestpiece, 27, Black Tube

Regular price
$214.00
Sale price
$146.00

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 chest piece *Dual-lumen tubing: two