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How Far Does Bluetooth Work Over?

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bednobs | 14:55 Thu 02nd Jun 2022 | Technology
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Between paired devices?
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30ft, but never that far for me
I know little about technology. What's the function of Bluetooth?
From Wikipedia: Bluetooth is a short-range wireless technology standard that is used for exchanging data between fixed and mobile devices over short distances using UHF radio waves.
So, you could send messages from a mobile phone to your desktop?
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if they both had bluetooth, yes.
i have some wireless headphones that are attached to my alexa via blue tooth, and what i was actually asking for was because i want to get a wireless speaker, and play music in my garden from the alexa, without taking the alexa into the garden
A wireless speaker would work via Alexa off wifi, not Bluetooth.
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.
Is it really work to 240M with version 5?
Oh, and I can thoroughly recommend a Sonos ‘move’ as a wireless speaker.
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thanks zacs. i don't get wifi in the garden, so it may be that i use it with a phone, rather than alexa
>>> 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.
can you not just use your phone with the speaker Alexa is on Prime Music
The other answer of course is..try it and see..
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.)

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