Cannot see it but to my mind once the room is alight enough to cause that
sort of need you are pretty stuffed anyway and should be in the street with
your mobile waiting for the fire engine.
Brian

--

This newsgroup posting comes to you directly from...
The Sofa of Brian Gaff...

Blind user, so no pictures please
Note this Signature is meaningless.!
"Andrew" wrote in message
...
Just noticed these in the Richer Sounds Clearance sale.

I find it difficult to believe that this would provide
66 minutes of protection. The speaker itself will
contain wiring and other plastic components that will
be exposed the highest temperatures in a burning room
below so will contribute to the fire.


https://www.richersounds.com/clearan...4.html?instore