This excellently crafted and durable stethoscope is made from top-quality materials, and undergoes strict quality control. Features: Full lifetime warranty on all parts Diaphragm/bell chestpiece has AFD technology, allowing you to tune the diaphram for the best acoustic response (light pressure for low frequency, firm pressure for high frequency) Made from surgical stainless steel for outstanding performance and rugged durability Extra large bell (1 3/8" diameter) Ultra-sensitive diaphragm (1 3/4" diameter) for greater amplification and crisper high-frequency response Non-chill bell and diaphragm rims for patient comfort Clinician headset boasts reinforcing yoke molded into the flexible 22" PVC tubing and stainless-steel binaurals fixed at 15º angle for greater comfort (tactical, copper, and iridescent models have aluminum binaurals) Tubing is soft and flexible and made without phthalates since 2014 Adsoft™ Plus silicone eartips with new snap-on connection for the ultimate wearing comfort and acoustic seal Includes accessory kit with two pairs of spare Adsoft™ Plus eartips Scope ID tag included Overall length 30" Assembled, inspected, and packaged in the USA