... stereo headphone, adopting 2.4G RF technology, can connect with PC,TV,DVD,CD,MP3,MP4 and other audio equipments. Specifications ... (use different battery have some difference)Power:3.7V 380mAH Li-ionHeadphone remote control :Volume+,Volume-,Play/Pause,Last song,Next ... song,easy and convenient to operateWireless connect with PC, can listen the music from PC,also can realized SKYPE,MSN,QQ wireless ...