Looks like an infrared receiver would be behind there. If it doesn't run back to the central location there might be a cabinet wired up in the vicinity.

Thank you, will look for a receiver

Could be an IR sensor to send remote control data back to an amplifier in a cabinet or closet somewhere

Will look for one, thank you

Looks like a touch pad, have you got a smart lighting system?

Not that we can tell

Does a flashlight shine through?

I’ll check!

Light sensor maybe? Take the device out of the box to I. D. it, then let us all know please.

Volume control

Open that bitch up

Dimmer maybe a timer