Arista 24-1433 Amplified Telephone Ringer/Flasher Landline

Amplified ringer with flasher, providing both visual and amplified audio/ringer cues.
Best possible for noisy areas, garages, warehouses, and the hearing impaired.
Use when the standard ringer to your analog modular phone by myself is inadequate.
Simple connect, no batteries required. Wall-mount slot on back. Installation instructions included on package.
Additional phone line cord wanted (now not included).
NOT to be used with digital/business phone systems (analog phone lines simplest).