On Wed, 24 Jan 2007 16:50:44 +0000 (GMT), "Dave Plowman
(News)" wrote:

In article ,
Derek Geldard wrote:
Not having such a device, why would the *receiver* be battery powered
unless you live somewhere without mains electricity?

You can move them about the house with you if, say you were working in
an upstairs room when expecting a parcel / take them into the
conservatory / out to the barbecue.

But I'd expect a mains bell system to be heard throughout the house. The
fact that you have to take a wireless one with you is just one more thing
against it.



.... or for it, not everyone has either a tiny house or wants
a bell system that loud, which tends to be that much louder
in areas adjacent to it. If you have plaster walls or
teenagers/others with loud stereos you may also find there's
no one bell system that can be heard everywhere without
waking the dead in the next zip code.

In short the ideal bell system is not as loud as possible,
it's only loud enough to be heard reliably. One could wire
up secondary chimes but considering the addt'l time and/or
expense it may not not suit all needs either.

You don't "have" to take anything with you, that's like
claiming it's a negative thing that a notebook is portable.