Amazon.com: 3.5 mm Audio Switcher, 2 Ports Audio Splitter Box (2 in 1 Out / 1 in 2 Out) Mini Headphone Manual Selector Converter with Bonus 47.2 in (120 cm) Cable, No External Power Required : Electronics
4 Port Audio Switch, 3.5mm Audio Switcher, Stereo Aux Audio Selector, 4 Input 1output/1input 4 Outp | Fruugo JP
Little Bear Mini 4 Port Stereo Manual Selector Audio Sharing 3.5mm Aux Speaker Headphone Switcher - Home Theater Amplifiers - AliExpress