These are a black
plastic plug that fits into the hole in the middle of the speaker on a
Neville alarm. This has the effect of reducing the volume by about 75%.
These are ideal for use during the day when full volume is
not needed or at night when using a sounder box and not wanting
to alert everyone else when you get a take (the plugs can be put
in or taken out in a matter of seconds).
These are a black
plastic plug that fits into the hole in the middle of the speaker on a
Neville alarm. This has the effect of reducing the volume by about 75%.
