This Y splitter adapter is most commonly used to split one Stereo output into Two. It can also be used to connect two 6.35 Stereo devices to one Stereo input.
2 x STEREO sockets 6.35mm
1 x STEREO plug 6.35mm
Housing approx 4cm
kenable 6.35mm 1/4 inch STEREO Jack Splitter Dual 6.35mm 1/4 inch Sockets to 6.35mm 1/4 inch Plug - B00CS8F606