计算机的工作就是打耳机和麦克风

computer stereo headset Rotating, adjustable boom --You can adjust the microphone to where it picks up your voice best—and rotate it back when you’re not talking. In-line audio controls --You can adjust the volume whenever you want or even make the microphone keep silence. Noise-cancelling microphone --It just picks up your voice and keeps other noise out. Good choice for you --Your headset is a good choice for voice and chat, music, multi-player internet gaming, movies, video conferencing, language & other training, speech recognition & dictation and so on. computer headphone specifications: MicrophoneSensitivity -58±3dBImpendance 2.2KΩFrequency 36Hz-16KHzDirectivity Omni-DirectionalSize 9.7*6.7mm-56db±2dbSpeakerSensitivity 110dBImpedance 32Ω±15%Max input Pwr 50mWRated Pwr 20mWFrequency range 20Hz-20000HzSize φ40mmPlug stereo φ3.5mmcable length 2.0mOperating Voltage 1.0V-10VBrief Advantage of our factory: 1) More than 7 years experience in computer accessories manufacturing and exporting; 2) Upgraded the quality system based on ISO9001:2000 for production. 3) Samples time in 2-3 days, orders time in 15-20 days