• Lightweight: Magnesium Alloy Construction Makes This Product Incredibly Lightweight Yet Rugged and Durable
  
• Comfortable: No Earcups, No 'Hot Spots', No Clamping, No Sweat!
  
• Stereo Hi-Fidelity Sound: For Maximum Music and Speech Reproduction
  
• Music Interface: Plug in a Portable CD Player, or Any Digital Music Player
  
• Cell/Satellite Phone Interface: Make a Call Using Your Headset
  
• "Pilot Isolate" For Conversation Privacy When Cell Phone is in Use
  
• Replaceable Foam Plugs: Comes Standard with Patented MATRIX
  
• No Roll Foam Ear Plugs by Howard Leight. Other Plugs Available For Optimal Customer Fit and Performance

General Data
Connectors: .250" Stereo Headphone Plug .206" Stereo Microphone Plug
Weight: under 1 oz

Earphone Data
Receivers: Metal Diaphragm, Nickel Plated Steel Enclosures
Frequency Response: 40-16 KHz

Earplug Data
Howard Leight MATRIX Foam: NRR 29

Microphone Data
Transducer Principle: Noise Cancelling Electret
Impedance: 1-2 KHz