Product Features Include: 

• Combination diaphragm/bell chest piece for wide frequency response
• Lightweight aluminum chest piece construction
• Non-chill bell and diaphragm rim for patient comfort
• Diaphragm diameter 1 3/4", bell diameter 3/4"
• Proprietary diaphragm enhances acoustic response by 50% over traditional designs
• Adjustable aluminum binaurals with PVC eartips
• Flexible 21" PVC tubing
• Spare pair of black mushroom eartips included
• Inspected and packaged in the U.S.A.
• Choice of 20 tubing colors
• Weighs 3 oz. (85.6g) 
• Overall length 32.25" (81cm)
• One Year Warranty