The Sescom SES-TRRS-AB switch is a convenient solution for connecting a headset to gaming systems such as PS4, PS5, Xbox Series X, as well as iPhones, android smartphones, computers and tablets. This passive TRRS device makes it easy to switch between two devices to one headset, or to connect two TRRS headsets to one source and switch between the headsets. Conveniently place on or near a desktop or gaming console, or mount it anywhere with the included 3M Dual-Lock Velcro strips. Can be used with your car AUX input to switch between two smartphones to car audio, and can be cascaded for further switching possibilities. Ground switching eliminates ground noise and interference from the non-active input/output.