... ,high quality voice,beteaful outlook SN-101 PMMA computer speaker:Magnetically shielded:Unique cabinet noise reduction features and circuit ... and operate.Supporting system:can be connected to laptop computers, mobile phones IPod, MP3, MP4, CD, PDA and so on ... Fe-B high-quality speakers, 4 ohmMagnetic featureMagnetically shielded Speaker Size50×50×50mmSpeaker WeightAbout100gOther Features2 40mm Nd-Fe-B ...