... traditional loudspeakers, the iTiger Surface Vibration Resonance Speaker makes minimal sound by itself. But when ... cool gadgets like mp3, mp4, cellphone, iPhone, iPod, iPad, PSP, NDS, or any other ... Comes with Internal Battery SpecificationsPrimary Function: Resonance Speaker Output power: 12W Static Currency: 0.5 ... 3.5 mm Audio Output such as: - iPhone, iPod, iPad - MP3 Player - MP4 Player - DVD Player ...