Product 1: Outstanding acoustics with better audibility of high-frequency sounds (adult side, firm pressure)
Product 1: Tunable diaphragm: Hear high or low frequency sounds by slightly adjusting pressure on the chestpiece
Product 1: Dual-lumen tubing: Two sound paths in one tube eliminates the rubbing noise of traditional double tubes
Product 1: Next-generation tubing lasts longer and resists stains; not made with natural rubber latex or phthalate plasticizers
Product 2: I.D. tag provides easy identification of stethoscope
Product 2: Includes one write-on and one engravable name plate
Product 2: Fits all models