The humming of the motors is due to the frequency of the pulse width modulation. When the electronics are upgraded, an inaudible frequency will be chosen, which will remedy the noise. Neither GPS nor internet connection are required for the mount to function as intended. In addition to this, the mount can run off of a single rechargeable battery pack for over 7 hours. Understand that this is likely not the first product to be sold, and the mount is still in the design stage -- the final product may be quite different when production-ready. That being said, the current design is based on 3 provisional utility patents and a registered copyright on a key algorithm, all owned by the founder, Dr. John Petersen.