Switcher, 4 Way 3.5mm Stereo Switch Special Design Easy To Use 1 Input for MP3 for Headphones

1 Source: Choose 1 speaker or earphone, (1 input source choose 1 output to earphone or speaker to avoid frequent replacement of earphone or speaker causing damage). Special Design: 3.5mm selector, specially designed for customers with multiple sources and outputs, without power and drive, easy to use. Support 1 Output Input: The 3.5mm stereo switcher only supports 1 output input selection, and cannot support 4 outputs inputs at the same time. 4 Sources: Choose 1 speaker or earphone, (choose 1 out of 4 input sources to output to the speaker or earphone to avoid frequent replacement of sources). Compatibility: The 4 port 3.5mm stereo switcher is compatible with all devices with 3.5mm output ports, such as mobile phones, laptops, computers, MP3, MP4, headphones, active speakers, etc.