AX421 HDMI eARC Switch 1 TV x 2 Soundbar Audio there are two tabs that

there are two tabs that can be slid out and used to attach the strip to the wall

armored MPO fiber optic cable

There is a setup video here

An LED indicates readiness

which gives you additional flexibility in operation

AX421 HDMI eARC Switch 1 TV x 2 Soundbar Audio there are two tabs thatAX421 HDMI eARC Switch for 2 sound systems to 1 TV Flexible switching between two audio sources The AX421 allows for easy switching between two sound systems with HDMI ARC or HDMI eARC connectionsideal for a soundbar, AV receiver, or headphone stand. Perfect for anyone who wants more flexibility in their home theater setup. Functions at a glance Alternate operation of two sound devices (eARC ARC) on one TV Automatic switching when switching the sound