In article ,
Ross Herbert wrote:
What you need to remember is that both ends of the wireless link need to
be powered from the mains supply.

Not really - the power they consume is well within reason for batteries.
Although it wouldn't make sense to not mains power the transmitter. And
having to mains power the receiver/speaker sort of negates the whole idea
- you might as well just run a cabled extension speaker.

--
*He who laughs last, thinks slowest.

Dave Plowman London SW
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