3-Way Stereo XLR Passive Audio Signal Switcher. This is a high-quality stereo passive audio switcher. 1pcs x Passive Audio Signal Switcher. Selection Switch 3 in 1 out or 1 in 3 out Selector. You can use it as 3-way input and 1-way output, it can also be use for 1-way input and 3-way output.
eBay