["Features:\nWith adjustable flexible mics boom.\nThe 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.\nWith foam fit ear seal, stainless steel headband and deep pocket ear canals, student pilots and flight instructors will enjoy the all day comfort. \nClear and reliable communication between crews, instructors, and the tower are all critical to your flight and enjoyment.\nfor heard with the all new designed EM56 noise reflective cup microphone and foam wind block mics muff. \nAviation Headset only, other accessories demo in the picture is not included!\n\nSpecification:\nNRR: 24db\nImpedance:150ohm/mono\nFreq: Ranges 100-17,00Hz\nSensitivity: 101db with 1mW input\nVolume control attenuation: 23db\nMicrophone type: Electret noise canceling mics\nFreq response: 300-8,000Hz\nMics source resistance: 220-2200ohm\nBoom type: Flexible\nMaterial: ABS\nDimensions: app.9.5x7cm / 3.74x2.76in\nColor: Black\nQuantity: 1 Set \n\nNote: \nPlease allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.\nDue to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!\n\nPackage includes:\n1x Aviation Headset\n1x Aviation Headset Aircraft Cable"]