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There are different versions of Bluetooth. The earliest version (1.0) had a theoretical maximum range of 10m. In versions 2.0 and 3.0, that was extended up to a notional range of 30m. With version 4.0 the figure went up again, to 60m, with version 5.0 seeing yet another rise, to 240m.
Those, of course, are entirely theoretical figures, which assume that there is no obstruction in the signal path and no interference from other radio devices in the area. In practice, I wouldn't rely on Bluetooth devices to reliably maintain connection over much more than about a quarter of those figures.
Most Bluetooth devices in use these days will probably be using either Bluetooth 3.0 or 4.0, with v.5.0 devices only just coming onto the market. However some people have probably still got Bluetooth devices that use v.1.0 or v.2.0.
Those, of course, are entirely theoretical figures, which assume that there is no obstruction in the signal path and no interference from other radio devices in the area. In practice, I wouldn't rely on Bluetooth devices to reliably maintain connection over much more than about a quarter of those figures.
Most Bluetooth devices in use these days will probably be using either Bluetooth 3.0 or 4.0, with v.5.0 devices only just coming onto the market. However some people have probably still got Bluetooth devices that use v.1.0 or v.2.0.
>>> Is it really work to 240M with version 5?
Welcome to The Answerbank, Max.
Rutronik, who make Bluetooth 5.0 components, carried out their own tests, achieving 51m (or 60m with some software tweaks) indoors but 455m (or 527m, with the tweaks outdoors).
Nordic, which is a company that uses Rutronik's components in its own devices, did its own tests outdoor and achieved 682m (or 1300m with the newer operational mode).
So 240m doesn't seem to be impossible outdoors for everyday users.
Welcome to The Answerbank, Max.
Rutronik, who make Bluetooth 5.0 components, carried out their own tests, achieving 51m (or 60m with some software tweaks) indoors but 455m (or 527m, with the tweaks outdoors).
Nordic, which is a company that uses Rutronik's components in its own devices, did its own tests outdoor and achieved 682m (or 1300m with the newer operational mode).
So 240m doesn't seem to be impossible outdoors for everyday users.
How do you intend to power the outdoor speakers?
If you're going to use mains electricity, a pair of 'powerline' adapters will give you an ethernet connection anywhere you have mains power. (On the assumption that you don't live in some kind of stately home...)
If you get the sort of Powerline device that has built-in wifi, you could take the Alexa with you. (This is only meant as a Plan B if the Bluetooth solution doesn't work.)
If you're going to use mains electricity, a pair of 'powerline' adapters will give you an ethernet connection anywhere you have mains power. (On the assumption that you don't live in some kind of stately home...)
If you get the sort of Powerline device that has built-in wifi, you could take the Alexa with you. (This is only meant as a Plan B if the Bluetooth solution doesn't work.)
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