Chestpiece made of chrome-plated zinc for outstanding performance and rugged durability·Extra large bell (1¼” diameter) ·Ultra-sensitive diaphragm (1¾” diameter) for greater amplification and higher frequency response ·Color coordinated non-chill bell and diaphragm retaining ring for patient comfort ·Chrome-plated zinc binaural with a reinforced dual inner spring construction provide extra durability and preset at the anatomically correct angle for optimal fit ·22” Y type thick-walled tubes reduce noise and provides outstanding sound transmission – No double tubes to rub together and create background noise ·Soft screw on PVC eartips assures maximum comfort and excellent acoustic seal in the ear canal · Extra diaphragm included ·Weighs 4 oz. ·Overall length 30” ·Latex Free |