... .No power needed 3.Connect to PC,MP3,MP4,MD,CD,DVD player, mobile phone,etc Features: 1.cup cake stereo ... .Connect to laptop,PC,Mobile Phone,Ipod,Iphone,MP3&MP4 Players and other digital products with audio frequency output5.Your pillow ... Speaker for apple iphone,ipad,ipod.PC,MP3,MP4,MD,CD,DVD player, mobile phone