UNSTINCER RCA L/R Audio Switch 4(2) in-2(4) out, Bidirectional Noiseless hifi Stereo Audio Splitter Box, Analogue Aux Line Selector for Headphone Game Console Soundbar TV Speaker Turntalbe, MetalClear SoundAudio switcher RCA is silent during use and does not change the sound quality in any way Simplify Your Life Connect your PC with a headset and speaker, designed for customers having several audio sources and outputs Strong Compatibilityrca audio switcher compatible with all rca audio ports, such as: phones, laptops, computers, MP3 4, headphones, speakers Easy to UseStereo audio selector box can be plug and play, no power supply simply