H3392 Single Headset New from David Clark $332 New Remanufactured from KC Headsets $249 Used Refurbished from KC Headsets $225 Single-Ear Headset 7A Noise-cancelling electret microphone Soft foam, 4-chamber head pad, temple pad and foam-filled ear seals for exceptional durability and comfort Hinged wire boom for easy microphone placement 5-foot extended coil cord with 1/4" TRS plug Corrosion-proof, chrome plated, headband/stirrup assembly Single-ear design permits hearing of ambient sound