This Delock 3.5 mm jack switch is a manual bidirectional switch for connecting various audio devices, offering two different usage options.

1. Up to two devices with a jack connection, such as headphones, can be connected to one audio source. By pressing a button, you can select which device should play the audio signal. Simultaneous output to multiple devices is not possible.

2. Up to two devices with a jack connection, such as a PC, laptop, or MP3 player, can be connected, and a headphone can be connected to the output. By pressing a button, you can choose which device's audio signal will be played through the headphones.