1)Stereo sound 2)Powered HI-Fl amplifier 3)3" full range speakers 4)3D stereo sound effect 5)RMS power: 2x3W 6)Size:78*85*185mm 7)Meas:43*40*40cm Pcs/ctn:20 G.W.:12.5kgs Fronttek,offering all kind of computer peripherals such as Mouse, Keyboard, Multimedia Speaker, Headphone, Card Reader and Digital Audio & Video products such as Mp4, PSP, DVD-T TV and Portable DVD player.