Black Box Extra-Loud Phone Ringer - Phone Line (RJ-11) - Black FM060

Use this extra-loud supplemental phone ringer in noisy areas where you can''t hear the phone ring, such as on shop floors or garages. Plugs into an ordinary RJ-11 jack. Features an on/off switch and simple mechanical bell construction. Pulls enough power from the phone line to provide a 65-75 dB ring.

Extra-Loud Phone Ringer, 2 x 1-Inch Screws, 1 x 1 5/8" x 1 5/8" Square Mounting Pad