History unknown, estate find, Untested, no cables, looks like rubber belt disintegrate. There is a metal piece, see pict, that also is loose inside ( we put in a bag and will include it) SOLD AS IS AS YOU SEE IT for parts only COULD ALSO BE GOOD FOR WATER RESISTANT PROJECT BOX OR PLACE TO STORE YOUR PHONE OR VALUABLES ON YOUR BOAT! You could also mount a small TV inside it for rear camera etc. Buy one of those wireless sets for vehicles, and keep an eye on your water skiers while keeping the monitor safe and dry!