In 1975 David Clark Company introduced the first headset specifically designed to provide hearing protection for pilots while also providing clear, isolated reception and crisp transmission at normal voice levels in a noisy aircraft.

The David Clark H10-60 passive headset offers the most in adjustability and noise protection. It's precision engineered to be user-customized to fit any wearer.

Features:

• 15% more noise attenuation in the lower frequencies than our
  other David Clark models, the H10-13.4 or H20-10.
• Unique two-way headset pressure adjustment, featuring a bendable
  headband and adjustable stirrup screws that let you control exactly
  how much pressure the earcups place against your head.
• Exclusive, patented combination metal/flex microphone boom
  ensures proper microphone placement (at the corner of your mouth
  and nearly touching your lips), every time. It also locks in place so
  you don't have to re-adjust every time you put on the headset.
• Exclusive M7-A, the most advanced noise-canceling microphone
  available.
• Noise Reduction Rating - 23 dB.
• Dual volume control lets you adjust the level for each ear.
• Super-soft, foam filled pillow headpad provides for greater comfort.
• Soft "undercut" comfort gel ear seals provide excellent comfort and
  flow around eyeglass frames.
• Detachable cord plug: change cords when your needs change. Ships
  with dual-plug general aviation-style straight cord (5'). Switch to
  optional dual plug coil cord or coil cord with helicopter plug at any
  time.
• 5-year Guarantee.
• FAA TSO Approved C57 Cat. B and C58a.
• Exceeds RTCA/DO-214 Standards.