Multiple Tone with Volume Control Wall Mount Telephone Extension Ringer

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This telephone extension ringer can be used to increase the volume of your existing landline phone or to relocate the ringer into a different room or location. It is ideal for indu strial environments where background noise can mask the sound of your ringing telephone. Includes mounting screws. Features: Wall mountable On/Off switch Multiple tone and pitch selection Volume control Multiple input types 8-12 ohm output for horn speaker No battery or external power required Specifications Width : 90mm Height : 155mm Depth : 30mm Packaged Volume : 1.14l Packaged Weight : 0.19kg Packaged Length : 25cm Packaged Width : 13cm Packaged Height : 3.5cm Show more