The Monster Cable SS4 4 Way Selector Switch is a versatile home audio component that allows you to easily switch between four different audio sources. With its sleek black design and universal compatibility, this selector switch is a convenient addition to any home stereo setup. The Monster Cable brand ensures quality and reliability in audio components, making this switch a dependable choice for enhancing your listening experience. run speaker, cables to the box and four sets of speakers out to different rooms. Turn them on and off easily to the room that you are doing your entertaining again outside back porch, living room ,garage