The 603 features:

• Combination adult size chestpiece precisely machined to exacting tolerances from surgical stainless steel for outstanding performance and rugged durability
  
  
  
• Extra large bell (13/8" diameter) for unsurpassed low frequency response
  
  
  
• Ultra-sensitive diaphragm (17/8" diameter) for greater amplification and crisper high frequency response
  
  
  
• Color coordinated non-chill bell and diaphragm retaining rim for patient comfort
  
  
  
• Stainless steel binaurals with double leaf internal spring fixed at 15º angle for greater comfort
  
  
  
• Reinforcing yoke molded into flexible 22" PVC “Y” tubing
  
  
  
• Adsoft™ deluxe PVC eartips (in small and large) for the ultimate in wearing comfort and acoustic seal
  
  
  
• Spare diaphragm included
  
  
  
• Available in 12 striking colors for departmental coding or personal identification
  
  
  
• Scope ID Tag included
  
  
  
• Weighs 6.5 oz.
  
  
  
• Overall length 31"
  
  
  
• Lifetime Warranty