Lightweight chestpiece. All purpose examination scope. Latex free. Certified Sound for the Health Professional. The stethoscope is one of the most valuable diagnostic tools used by health professionals. That's why OMRON stethoscopes bear the seal of CERTIFIED SOUND - the OMRON performance guarantee. Performance: Bell for cardiac auscultation. Diaphragm for respiratory auscultation. Long-life, single lumen PVC tubing for better sound transmission. Design: Lightweight for comfort and portability. High-lustre chrome-plated binaural resists scratching. Dynamic tubing colors. Personal Safety and Comfort: Latex-free tubing protects allergy sensitive individuals. Non-chill ring on bell ensures patient comfort. Adjustable spring binaural provides personal fit.