---
product_id: 778572679
title: "Universal Handset and Headset Amplifier"
brand: "serene innovations"
price: "€ 17119.10"
currency: EUR
in_stock: false
reviews_count: 5
category: "Serene Innovations"
url: https://www.desertcart.ie/products/778572679-universal-handset-and-headset-amplifier
store_origin: IE
region: Ireland
---

# Universal Handset and Headset Amplifier

**Brand:** serene innovations
**Price:** € 17119.10
**Availability:** ❌ Out of Stock

## Quick Answers

- **What is this?** Universal Handset and Headset Amplifier by serene innovations
- **How much does it cost?** € 17119.10 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/778572679-universal-handset-and-headset-amplifier)

## Best For

- serene innovations enthusiasts

## Why This Product

- Trusted serene innovations brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

Universal Handset and Headset Amplifier

Review: I have a moderate hearing loss. This unit makes it possible for me to continue to work with the landline phone that I use with a headset for taking notes over the phone. Usually I do not need to turn the dial up more than 1/3 of the way, but the volume of incoming calls varies a lot with the caller, so I appreciate the control. Setup was easy. The lid to the battery compartment could be more secure. I have knocked it off several times, and eventually put some tape over the lid to hold it in place. The important feature is the clean amplification, so I give it 5 points.
Review: Works as described.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B002OKYW8U |
| Batteries Included | No |
| Batteries Required? | No |
| Customer Reviews | 4.3 4.3 out of 5 stars (24) |
| Date First Available | September 6, 2014 |
| Is Discontinued By Manufacturer | No |
| Item Dimensions LxWxH | 5.1 x 10.2 x 24.1 cm |
| Item Weight | 0.28 g |
| Part number | UA50 |
| Product Dimensions | 5.08 x 10.16 x 24.13 cm; 0.28 g |

## Product Details

- **Audio Sensitivity:** 45 Decibels
- **Item Weight:** 0.01 Ounces
- **Rechargeable Battery Included:** No

## Images

![Universal Handset and Headset Amplifier - Image 1](https://m.media-amazon.com/images/I/31oEopet8iL.jpg)
![Universal Handset and Headset Amplifier - Image 2](https://m.media-amazon.com/images/I/61-qaX51xUL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by J***) on November 1, 2025*

I have a moderate hearing loss. This unit makes it possible for me to continue to work with the landline phone that I use with a headset for taking notes over the phone. Usually I do not need to turn the dial up more than 1/3 of the way, but the volume of incoming calls varies a lot with the caller, so I appreciate the control. Setup was easy. The lid to the battery compartment could be more secure. I have knocked it off several times, and eventually put some tape over the lid to hold it in place. The important feature is the clean amplification, so I give it 5 points.

### ⭐⭐⭐⭐⭐ Review
*by D***T on November 5, 2025*

Works as described.

### ⭐⭐⭐⭐⭐ Review
*by J***R on March 27, 2014*

This amp is amazing! Easy to hook up with in seconds and has tons of power for volume and tone. Buy the Serene Innovations UA-50 (IMHO - The Cadillac of amplifiers) and you will never have another problem hearing on the phone no matter what level of hearing loss. I went to work and installed the optional 9 volt (also comes with power cord) and installed it to my office phone all in about 40 seconds. I first adjusted the phone "compatibility" switch on the right side of the unit. Second, I adjust the "tone". For me, I have high frequency / high pitch hearing loss. I click the "tone" switch up two notches and all my phone calls are crystal clear. Lastly, I adjusted the volume knob to the first white block on the unit - simple as that. There is a "boost" button but with the amount of "horsepower" even before engaging this feature, I can say with certainty I will never use it. There is also a "headphone" button next to the "boost" button so you can utilize headphones. The reason for me using the optional 9 volt is so I can move the device to another office phone in a jiffy. Definitely a five star product and highly recommend to anyone with hearing loss. I have no regrets for spending this type of money for a phone amplifier.

## Frequently Bought Together

- Serene Business Phone Amplifier (UA50)
- UL Listed 9V AC Power Adapter for Arduino UNO, Power Supply Cord for Crosley Cruiser CR8005A, Schwinn Bike A10 A20 A40 220 430 Elliptical Trainer - Center Positive 5.5x2.1mm Plug (6.6ft)
- Serene Portable Phone Amplifier (UA30)

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**Shop now:** [https://www.desertcart.ie/products/778572679-universal-handset-and-headset-amplifier](https://www.desertcart.ie/products/778572679-universal-handset-and-headset-amplifier)

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-02-26*