... for laptop 1)for mobile phone,MP3,computer.. 2)CE&FCC 3)3.5mm stereo plug 4)With MP3 player Vibration speaker for ... wall, metal and etc. You will have different feeling for the same song by putting on different surface. MaterialSound ... , With 3.5mm stereo plug for many digital audio players like MP3/4 player, laptop, PC, MD, mobile phone Spec ... I-mu i-jerry USB Powered Vibration speaker for laptop