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 industrial environments where background noise can mask the sound of your ringing telephone. Includes mounting screws.
 • 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
