The Telex Airman 7+ Aviation Headset is an ultra lightweight passive noise-reducing headset designed specifically for optimizing pilot communications in commercial and business turbine aircraft. The Airman 7+ is the passive noise reduction / non- ANR version of the top-of-the-line Airman 8+, with the same upscale finish and robust-but-lightweight form factor. The Telex Airman 7+ Aviation Headsets are not designed for General Aviation / Propeller Aircraft. They are designed for the Commercial Aviation / Corporate Jet market.