What is CEC?

A: The full English name of CEC is Consumer Electronic Control, which is a function of HDMI that enables users to command and control other CEC devices connected via HDMI. For example, when the user puts the DVD into the Blu-ray player, the TV will automatically turn on due to the notification of the CEC signal, and then the video channel will automatically switch to the channel connected to the player. When the user turns off the TV, the CEC signal will also notify the HDMI-connected devices to enter standby together, and it becomes a single remote to control all HDMI-connected devices, which can solve the trouble of users needing to use multiple remotes to control the corresponding devices .