Sjöfn HiFi (the clue) loudspeaker

I was sitting in my high chair, eating strained peas. My father was walking around the kitchen with a wooden box in one hand and a cord with a plug in the other. The box and the cord were attached to each other. I was inspired to utter my first actual sentence: "Plug it in over there!" Moments later, a man with a disturbing voice began squawking from inside the wooden box. It was a radio. Schnapps, our dachshund, barked angrily. I started to cry. Ever since, I've been charmed, fascinated, and mostly annoyed by wooden boxes that talk to me.