... stereo headphone, adopting 2.4G RF technology, can connect with PC,TV,DVD,CD,MP3,MP4 and other audio equipments. Specifications:This ... Applied ergonomics design,wearing more beautiful,comfortable and convenientConnet with TV,iPhone etcMicrophone:Microphone size:6mmSensitivity:-52dbImpedance:≤2.2kΩFrequency ... —20KHZ wireless headphone for iPod ,hand free headphone for PC&TV and other audio equipment