Oregon Aero headset upgrade kits eliminate pain and pressure, improve intelligibility and keep the head and ears cool and dry. The upgrade kit consists of five interrelated components. The SoftTop Headset Cushion eliminates top-of-head pressure and keeps the head cool or warm. The SoftSeal Ear Cushions conform to head shape and provide 200 to 300 percent more volume for total comfort. The SoftSkin Ear Seal Covers keep ears even drier and cooler. They fit loosely, not tightly like a drum because tight cloth covers produce pressure on the ear, causing pain. The HushKit Passive Ear Cup Noise Attenuation Kit performs better than ANR headsets in the 700 to 7,000 Hz mid-range where hearing loss occurs. It dramatically improves noise attenuation and intelligibility. The MicMuff Microphone Cover eliminates ambient cockpit noise and noise from radios and intercom.