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).

Ordering Information
Code	Description	Our Price	Purchase
MX0010	Matrix Innovations Neville Buzzer Plugs	£1.99