Mono Switch MP3 Music Air RA200 Aviation Headset with Dual Plugs Stereo Mono Switch Music Input Noise Reduction _x000D_ Features: _x000D_ _x000D_ With adjustable flexible mics boom. _x000D_ The aviation headset with 24dB NRR (Noise Reduction Rating), clear Hear 50mm performances speaker, volume control and 3.5mm music input jackes for iPods and MP3. _x000D_ With foam fit ear seal, stainless steel headband and deep pocket ear canals, student and flight instructors will enjoy the all day comfort. _x000D_ Clear and reliable communication between crews, instructors, and the tower are all critical to your flight and enjoyment. _x000D_ for heard with the all new designed EM56 noise reflective cup microphone and foam wind block mics muff. _x000D_ Aviation Headset only, other accessories in the picture is not included! _x000D_ _x000D_ Specification: _x000D_ NRR: 24db _x000D_ Impedance:150ohm/mono _x000D_ Freq: Ranges 100-17,00Hz _x000D_ Sensitivity: 101db with 1mW input _x000D_ Volume control attenuation: 23db _x000D_ Microphone type: Electret noise canceling mics _x000D_ Freq response: 300-8,000Hz _x000D_ Mics source resistance: 220-2200ohm _x000D_ Boom type: Flexible _x000D_ Material: ABS _x000D_ Dimensions: app.9.5x7cm / 3.74x2.76in _x000D_ Color: Black _x000D_ Quantity: 1 Set _x000D_ _x000D_ _x000D_ Note: _x000D_ _x000D_ Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. _x000D_ Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! _x000D_ _x000D_ _x000D_ Package Includes: _x000D_ _x000D_ 1x Aviation Headset _x000D_ 1x Aviation Headset Aircraft Cable_x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_