Features4Port R/L Stereo audio switcher: twoway switching splitter audio sharing active speakersThe 4channel switch knob, completely isolates circuits, ensuring that each signal is not affected by the other three channels.Plug and play; no external power supply required; no impact on sound quality2 in 4 out/ 4 in 2 out bidirectional switch, each output volume is independently controlled.Share a single stereo source, no audio crackle minimal distortion at highest volumes. No loss of signal when all four ports connected.Specifications:Model: GV AC004AItem: 4 Way BiDirectional RCA Stereo Audio SwitchSupport: 2 In 4 Out / 4 In 2 OutSystem: supports Windows xpInterfaces: R/L Jackssize: about 107 x 92 x 40mmMaterial: Metalcolour: blackPackage Contents:1 x RCA Stereo Audio SwitchOnly the above package content, other products are not included.Note: Light reflection 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 +/ 13cm.