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An angular rune-like glyph marking a Bluetooth wireless connection.
Also known as: Bluetooth logo, Rune symbol, B symbol
The Bluetooth symbol is a bind rune combining the initials of Harald Bluetooth, the tenth-century Scandinavian king the technology is named after — one of the few interface symbols with a genuine historical derivation.
Indicates that Bluetooth is available, enabled, or that a device is connected over it.
Contexts: Software
Is a bind rune joining the Younger Futhark runes Hagall and Bjarkan — the initials of Harald 'Bluetooth' Gormsson, after whom the technology is named.
Rune forms are medieval; the symbol dates from the 1990s · Contexts: Software
Is a registered trademark of the Bluetooth Special Interest Group, so its use on products is licensed rather than free.
Symbolwise describes the mark and renders an original illustration; it does not reproduce the trademarked artwork.
Contexts: Software
Is a bind rune: the Younger Futhark runes Hagall and Bjarkan, the initials of Harald Blåtand — Harald Bluetooth, the tenth-century Danish king who united warring tribes — overlaid on one another. The technology took his name because it was meant to unite competing short-range radio schemes, and the mark makes the same joke.
Named in 1997; the runes are tenth-century · Contexts: History, Software
Changes meaning with its colour and state on most devices, not with its shape: greyed out for the radio being off, solid for on, and blinking or accompanied by a second mark for pairing. The variation is a platform convention rather than anything the Bluetooth specification requires.
Contexts: Software, Electrical equipment
A vertical stem crossed by two triangular loops, one meeting it above and one below, forming an angular figure like a B drawn in straight strokes.