If he were to just buy a 220v to DC brick, the one used on Germany/European 360 models, he wouldn't need the outlet transformer.
If he were to get a voltage transformer for the outlet, 220/110vac, he wouldn't need to change the brick. But it would be easier to not need this medium, as you might forget, or someone might not know and fry it trying to plug it in normally. <--- Unlikely, since the pins would be different, but meh.