... , adopting 2.4G RF technology, can connect with PC,TV,DVD,CD,MP3,MP4 and other audio equipments. Specifications:This ... easy and convenient to operateWireless connect with PC, can listen the music from PC,also can realized SKYPE,MSN,QQ ... ergonomics design,wearing more beautiful,comfortable and convenientConnet with TV,iPhone etcMicrophone:Microphone size:6mmSensitivity:-52dbImpedance:≤2.2kΩFrequency ...