... No power needed 3.Connect to PC,MP3,MP4,MD,CD,DVD player, mobile phone,etc Features: 1.cup cake stereo ... into your player4.Connect to laptop,PC,Mobile Phone,Ipod,Iphone,MP3&MP4 Players and other digital products with audio ... you love anywhere6.Compatible with any audio electric player that uses a headphone jack7. Special Design like ... for apple iphone,ipad,ipod.PC,MP3,MP4,MD,CD,DVD player, mobile phone