This Delock Stereo jack 3.5 mm switch is a manually bidirectional switch for connecting different audio devices. This switch offers two different applications. 1. It can be connected to up to two devices with stereo jack port, e.g. headset, to an audio source. By using the button it can be selected the device which plays the audio signal. (Simultaneous output to multiple devices is not possible) 2. It can be connected to up to two devices with stereo jack port, e.g. PC, laptop or MP3 player and connect to the output port a headset. By using the button it can be selected from which device the audio signal plays on the headset. Specification https://elecena.pl/product/24387709/88061-jack-switch-3-5-mm-4-pin-2-port-bidirectional 2023-10-23 https://elecena.pl/product/24387709/88061-jack-switch-3-5-mm-4-pin-2-port-bidirectional 2025-01-23 https://elecena.pl/product/24387709/88061-jack-switch-3-5-mm-4-pin-2-port-bidirectional 2025-10-17 https://elecena.pl/product/24387709/88061-jack-switch-3-5-mm-4-pin-2-port-bidirectional 2026-03-04