... speaker box for psp2000, for psp3000, pc, mp3, mp4,s DVD, TV Voltage:DC12-15V 2A Subwoffer: 15W(RMS) Speaker ... 4 omegaSatellite box: 180HZ-18HZSignal to noise ration (SNR,S/N): >70dbSeparating degree:>50db 2.Function:1). Designed by ... .5).Steering yoke is adjustable for perfect video view.6).Has stereo, trichromatic aberration, AV output.7).When ... Speaker for psp 2000, psp3000, pc, mp3, mp4, DVD, TV