Who came up with that was probably drunk!
When the microphone is plugged in, it shows in the direction of the film and not on the scene!
Accordingly:
One hears nothing from the actual scene!
The thing Man stabs himself in the eye!
Completely meaningless development. The shoe is rotated through 180 degrees!
The operating time with one battery is never 800 hours. 80 are possibly. Realistic.