Designed for TFT-LCD monitor, portable Magnetically shielded and not affect CRT monitor Suitable for all audio players with a USB connection port For all sound/music cards Easy control of volume and power by USB port Mic JACK /headphone JACK built-in Sound quality is super good Natural sound play back 3.5mm audio jack 600W P.M.P.O Height:17cm Width:7.5cm Color:Black Material:ABS Frequency response:150Hz-20Hz Length of audio cable: 80cm Length of USB cable: 76cm Package included: 1 x 120W USB Power Computer Speakers Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.