Its strong RJ11 telephone ringer amplifier telephone answering accessories for landline telephones

General Description: The Ahlsen Loud Sound RJ11 Ringer Amplifier is designed to emit a clear and powerful sound, ideal for noisy environments. It easily connects between your landline phone and the wall phone line, increasing the ringer volume. This device is especially useful for the hearing impaired, heavy sleepers, and those who are often away from their phone.