Speaker, Applicable for ipod, MP4 Player, Laptop, PC and More.With special particular patent in worldwide. Be applicable for MP3, MP4, laptop, PC, MD, mobile ... to take Used new design of latent port Dimension: φ55 x 38.5/φ55 x 77mm Net weight: 112g Speaker: φ36mm Input ... combine the 2 speakers together, and easy to take Used new design of latent port With special particular patent in worldwide ...