The Telex Airman 8+ is a lightweight noise-reducing headset designed specifically for optimizing pilot communications in commercial and business turbine aircraft. Building on the tradition of the Airman 850 and the Airman 8, the Telex Airman 8+ has improved ANR capability and comfort. The Airman 8+ is among the lightest Active Noise Reduction headsets on the market and one of only three FAA TSO C139a approved ANR headsets to utilize Telex's proprietary battery-free system. Larger pliable ear cushions and headband pad combined with dual axis ear cup pivots to provide long flight wearing comfort. Up to 40% more Noise Reduction vs. Airman 8! Note: An active intercom or Hot Mic is needed to fully power the ANR on this Telex aviation headset. Note: These are not designed for General Aviation / Propeller Aircraft. They are designed for the Commercial Aviation / Corporate Jet market.