I've found that wireless keyboards/mice and desktop computers worked out best for my child. Alternatively, you might want to seek out an old heavy mechanical keyboard, those things are built like battleships.
The other perk of a mechanical keyboard is that it will make his hands work out a bit. And we will be able to hear it should he try to dodge the time limitation...
The other perk of a mechanical keyboard is that it will make his hands work out a bit. And we will be able to hear it should he try to dodge the time limitation...