A traditional dual head design featuring a lightweight aluminum chest piece pvc tubing. An inlaid non-chill ring, chrome-plated brass binaurals. An excellent stethoscope for general auscultation. 1) soft ear tips 2) aluminium chest piece 3) non-chill bell and diaphragm ring 4) diaphragm side, detect high frequency sound 5) bell side, detects low frequency sound 6) snap on diaphragm ring 7) latex-free tube qr