This is a CT scan of a baby monitor. The speaker is clearly visualized and, unlike many of today's electronics, under the surface is revealed not a microchip, but solid state components such as capacitors, transistors, and resistors. The cube shaped object near the proximal end of the antenna is consistent with a potentiometer. The speaker is clearly visualized along with its wires that extend into the diaphragm. In the movie, the battery can be clearly seen as the monitor revolves to reveal the back of the unit.