creative labs gigaworks t40 series ii. recommended usage pc, audio output channels 2.0 channels. rms rated power 32 w, frequency range 50 - 20000 hz. colour of product black loudspeakers recommended usage pc audio output channels 2.0 channels speaker placement tabletop/bookshelf tweeter ja woofer - audio rms rated power 32 w frequency range 50 - 20000 hz design colour of product black ports & interfaces cord length 2 m other features speaker power 16 w dimensions (wxdxh) 88 x 143 x 313 mm compatible operating systems windows 7/vista