Planes are unable to be controlled wirelessly. The plunge in altitude of 300 feet was most likely due to a sudden change in air pressure. Its happened before, over thousands of feet, which is much worse. People should keep their seatbelts on. If a wireless mouse can push a plane off course, then that fact would have been exploited. The only thing that could affect the planes direction is if the plane was using radio navigation, rather than gps. And bluetooth mice dont emit a constant, high power set of radiowaves anyway. Its absurd.