Had to stop laughing before typing. Gadget? It could be the cone. This is the round "speaker" itself. A large magnet would be at the back of this. Or it could be the crossover. This should look like coils of wire and maybe some resistors, other circuit parts and a circuit board. If a cone is loose, you should be able to just fasten it back in place. If broken, perhaps you could get some heavy duty glue or resin. If the crossover is loose, do the same, but if the crossover looks damaged (coils or other parts), it will need replaced. Give us some more details.