Clicktronic 70353 is an optical auto-switch designed to connect two digital devices, such as a DVD player and an HDTV. It is an integral part of the CEC Audio-Video Entertainment System, which offers users complete control of their electronics. The 70353 works by automatically switching to the chosen output device when it is powered on. It features two HDMI ports, two RCA audio inputs, one Toslink (digital audio) input, one coaxial input, one USB port, and one IR blaster port. It can be used to connect speakers, satellite receivers, DVD players, and more. The 70353 is a great choice for those who want a simple and efficient way to manage their electronics without ever having to reach for a remote.