Medical Colorful Dual head stethoscope

Medical Colorful Dual head stethoscope
Specification
1.Dual head chestpiece for adult ,oxidized aluminum chestpiece . The membrane is sensitive for sound collecting . Applicable for auscultation of heart and lung .
2.The small bell-like chestpiece is used for auscultation of slight and low frequency sound 
3.Aluminum alloy chestpiece ,good sound conduction
4.Standard single PVC tubing , color is optional .