... design;DIY music;Strong BASS,perfect sound effectMODEL:AD-315 mini vibration speaker,1. Patented technology;Zinc alloy metal material ... Iphone,ipod, computer,mobile and etc standard 3.5mm audio plug 3.Technology:Using our self-developed core of technology ... called preaching vibration multidimensional sound,which subvert the traditional audio pronunciation,it has no loudspeaker itself,when it works, ...