4-Port R/L Stereo Audio Switcher: Two-way switching splitter for audio sharing with active speakers. Features a 4-channel switch knob that completely isolates circuits, ensuring each signal remains unaffected by the other three channels. Plug and play design with no external power supply required and no impact on sound quality. Supports 2 in 4 out or 4 in 2 out bi-directional switching, with independently controlled output volume for each channel. Enables sharing of a single stereo source with minimal distortion even at highest volumes and no audio crackle. Maintains full signal integrity when all four ports are connected. Specifications: Model: GV-AC004A Item: 4 Way Bi-Directional RCA Stereo Audio Switch Configuration: 2 In 4 Out / 4 In 2 Out System Compatibility: Windows XP Interfaces: R/L Jacks Dimensions: Approximately 107 x 92 x 40mm Material: Metal Color: Black Package Contents: 1 x RCA Stereo Audio Switch Note: The package includes only the items listed above. Other products are not included. Light reflection and differences in display screens may cause slight variations between the color of the item in the image and the actual product. Measurement tolerances allow for an error of +/- 1-3cm.