QTY Per Sell: 1 Adjustable chrome-plated binaurals for a comfortable fit Complete with an eight-piece accessory kit Gasket-sealed system for improved acoustics Patented valve mechanism virtually eliminates acoustic leakage Chest piece key facilitates diaphragm replacement Convertible chest piece permits the use of five interchangeable chest piece fittings -- an adult and pediatric diaphragm, and three bells (1-1/4 inch, 1 inch, 3/4 inch) Weighs 6 oz Double-tube configuration in 22 inch length for improved acoustic separation Overall length 30 inches 5-year warranty WARNING: This product can expose you to di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.:California Warning: Yes
