Draco and the Walkie Talkies

In this chapter we get two specific separate completely separate mentions of walkie talkies. It's mentioned specifically twice so that it gets ingrained in our head and then later on because it never specifically says at the end like oh that's what Draco was doing when he was talking to his hand I think that's just something that you're supposed to sort of put together yourself. Hermione does this and remembers talking to Victor and having the bug in her hair right so there's there's that happen at the end that kind of allow you to get it all together but I'm sure these are the only two times in the whole series that the phrase walkie-talkie is mentioned  but it's