Overview Reviews Product Description Detects air induced sounds not detected by conventional stethoscopes. Place funnel over suspected air leak. Lisle Tools Catalog Product Videos Custom Field Harmonization code HTS #8205599080 Manufacturing country US Product Reviews Write a Review Write a Review × Lisle Audio Stethoscope 52700 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *