Or for anyone who has already seen Kingsmen:
The King of Sweden : Bluetooth technology.
Eggsy : Which, of course, got its name from the legendary Danish king Harald Blatand, whose name translates to 'Bluetooth' in English.
[back in England, Roxy is relaying all the information through Eggsy's glasses]
Roxy : And the Bluetooth logo is his initials in Norse runic symbols.
Eggsy : And, as I'm sure you know, the Bluetooth logo is his initials...
Princess Tilde : Yup.
Eggsy : ...in Norse runic symbols.