Helicopter Pilot Headset Fixed Wing Pilot HeadsetData sheet /-//-//-//-//-/ UA6000H and UA6000F wired carbon fiber pilot headsets enhancing your flying experience with all-day comfort andclear audio performance. Inbertec aviation headsets feature advanced PNR noisecancellation technology to detect ambient noise andcancel it out before it reaches the ear. The firmly and snugly ear cushions essentially create a seal around yourearthat keeps unwanted noises out. UA6000H is for Helicopter use. UA6000F with Dual GA Plugs for Fixed Wing Aircraft use. Passive Noise Reduction Technology UA6000H/UA6000F utilizes passive noise reduction techniques to minimize the impact of external noise on the user's hearing. With a specialized earcup for noise-proof insulation, it's worked by mechanically blocking sound waves from entering the ear Noise-cancelling dynamic microphone to filter out background noise and ensure the pilot's voice to be transmitted clearly Comfortable leather ear cushions and replaceable headband protective case and 216°rotatable microphone boom offering great comfortability and flexibility 7.1 mm jack plug (equivalent to U174/U) 5.2mm+6.35mm jack plug (equivalent to PJ-068 and PJ-055) Xiamen Inbertec Electronic Technology