... Product Description Computer Headphone with Microphone description:1, Headband design,rugged stainless steel bars,adjustable.2, Electroplating ornaments ... clarityDetail description:1, Headphone,Earphone,Headset,computer headphone,Computer headset,Earplug.2, Direct Factory.3, High quality ... -58dB±3 dBDirectionality:Omni-directionalMi-head impedence:≤2.2KΩSpeaker Diameter:40.0mmSpeaker impedence:32Ω ...