A rectangular telephone amplifier in white and teal with a central round dial marked "BOOST".

Serene Innovations UA-45 Universal Telephone Amplifier - Amplified Telephones

by Serene Innovations

$62.98, see price history

Price is what the vendor listed when last checked. Confirm it with the vendor before buying.

Setup with instructions The device is simple, but it has to be wired into an existing phone. You also supply your own battery or adapter, and tuning the tone takes some trial and error. A family member can do this with the instructions, so guided setup fits. A hearing professional is not needed, though an audiologist can help if the sound still isn't right.

What it is

Summary

AI-generated from vendor-published content · October 1, 2026

The UA-45 is an amplifier that connects to an ordinary corded home or business phone and makes the caller's voice louder, up to 45 dB. It uses digital sound processing to cut distortion, echo, and static. It also has tone enhancement, which lets you boost the speech sounds you have trouble hearing, and automatic gain control, which keeps the volume comfortable. This is a good fit if you have trouble hearing callers on a phone you already own and don't want to replace it. It runs on a 9V battery or an AC adapter, and neither is included.

Getting it

Try before you buy

Devices like this are often available to borrow through your state's AT Act program — typically free or low-cost — so you can try it before buying or pursuing funding.

Find your state's lending program →

Where to get it

Diglo Visit
$62.98

This is the vendor WhatCanHelp tracks for this product — it may also be available from other retailers or a local supplier, and prices vary.

Wondering how equipment like this gets paid for? See the official funding programs in your state.

Details

Quick Facts Catalog facts · auto-generated
Type
Addresses
Platform
Age range
Complexity
Setup with instructions
Price
$62.98
Funding
  • AT Act lending
  • Out of pocket

What setup looks like

  • Out of the box
    Put in a 9V battery, or plug in an AC adapter if you have one. Neither comes in the box.
  • With a guide
    1. Connect the amplifier to your corded phone as shown in the instructions. Check that it works with your type of phone.
    2. Make a test call. Adjust the volume and the tone control until the voice sounds clear. Plan on about 15-30 minutes in total.

Sources & fine print

Vendor facts (name, price, platforms, vendor link) sourced from Diglo — view on vendor site (opens in a new tab); last checked October 31, 2026.

Classification & description AI-generated from vendor-published content on October 1, 2026 · confidence: high. Vendor specs may lag; verify before relying on details in a clinical or funding artifact.

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