This is probably a theoretical issue.

There is not enough space on the seatback tray to allow the use of a wireless mouse.

But I am intrigued.

I just bought a new wireless mouse. The following instruction caught my eye:

"Before boarding the aircraft, remove the batteries from the wireless mouse. The wireless mouse can emit radio frequency (RF) energy, similar to a cellular telephone, whenever batteries are installed and the mouse is activated either by touch or button press"

Comments.