"A very kind gesture," he acknowledged, although the tone of his voice didn't give it much weight; as surprising (and charming) as he'd found it then, its application in his current situation was obscure at best. He could certainly have blasted it in his office, given enough silencing charms, but that was hardly the point. "But what exactly is that?" He wasn't used to not-knowing. He'd fallen rather behind in keeping up with Muggle technology in the past twenty years or so, but he liked to think he wasn't a complete luddite.