4 Input 1 Out Audio Signal Switcher hifi stereo RCA Switch Splitter Selector Box | eBay
HR-DSX4 ‐ Digital Audio Selector - 4x1
8 PORT AV SWITCH with Remote Control RCA Video Audio Selector 8 in 1 out Sharing Manual Switcher box|switch audio video|switch with remote controlswitch with remote - AliExpress