https://en.wikipedia.org/wiki/Harald_Bluetooth

"The Bluetooth wireless specification design was named after the king in 1997,[29] based on an analogy that the technology would unite devices the way Harald Bluetooth united the tribes of Denmark into a single kingdom.[30][31][32] The Bluetooth logo consists of a Younger Futhark bind rune for his initials, H (ᚼ) and B (ᛒ).[33]"

"4G is the fourth generation of mobile technology. It is also called LTE (Long Term Evolution)."

👆 could mean something to someone.

https://en.wikipedia.org/wiki/Harald_Bluetooth

"The Bluetooth wireless specification design was named after the king in 1997,[29] based on an analogy that the technology would unite devices the way Harald Bluetooth united the tribes of Denmark into a single kingdom.[30][31][32] The Bluetooth logo consists of a Younger Futhark bind rune for his initials, H (ᚼ) and B (ᛒ).[33]"