---
product_id: 580697091
title: "Phonak Open 4.0 Dome Small (0.29 inch=7.5mm) 10 Domes, Genuine OEM Switzerland Replacement by Sonova, Hearing Aid Domes for Phonak Audeo Marvel Paradise Lumity Accessories -1 Pack/10 Domes Total"
brand: "otto tech"
price: "2678 kr"
currency: ISK
in_stock: true
reviews_count: 8
category: "Otto Tech"
url: https://www.desertcart.is/products/580697091-phonak-open-4-0-dome-small-0-29-inch-7
store_origin: IS
region: Iceland
---

# Compatible with multiple models 0.29 inch diameter Genuine OEM parts Phonak Open 4.0 Dome Small (0.29 inch=7.5mm) 10 Domes, Genuine OEM Switzerland Replacement by Sonova, Hearing Aid Domes for Phonak Audeo Marvel Paradise Lumity Accessories -1 Pack/10 Domes Total

**Brand:** otto tech
**Price:** 2678 kr
**Availability:** ✅ In Stock

## Summary

> 👂 Hear the world, comfortably!

## Quick Answers

- **What is this?** Phonak Open 4.0 Dome Small (0.29 inch=7.5mm) 10 Domes, Genuine OEM Switzerland Replacement by Sonova, Hearing Aid Domes for Phonak Audeo Marvel Paradise Lumity Accessories -1 Pack/10 Domes Total by otto tech
- **How much does it cost?** 2678 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/580697091-phonak-open-4-0-dome-small-0-29-inch-7)

## Best For

- otto tech enthusiasts

## Why This Product

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

## Key Features

- • **Tailored Comfort:** Designed for narrow and small ear sizes, ensuring a snug fit.
- • **Reliable Performance:** Genuine OEM parts guarantee safety and optimal performance.
- • **Skin-Friendly Material:** Non-allergenic silicone ensures comfort and durability.
- • **Versatile Compatibility:** Compatible with various Phonak and Unitron hearing aids.
- • **Natural Sound Enhancement:** Open design allows natural noise to filter through, improving sound quality.

## Overview

The Phonak Open 4.0 Dome Small is a pack of 10 genuine OEM replacement domes designed for narrow ear sizes. With a diameter of 0.29 inches (7.5mm), these non-allergenic silicone domes enhance sound quality while ensuring a comfortable fit. Compatible with multiple hearing aid models, they are essential for optimal auditory performance.

## Description

Buy Phonak Open 4.0 Dome Small (0.29 inch=7.5mm) 10 Domes, Genuine OEM Switzerland Replacement by Sonova, Hearing Aid Domes for Phonak Audeo Marvel Paradise Lumity Accessories -1 Pack/10 Domes Total on desertcart.com ✓ FREE SHIPPING on qualified orders

Review: Works great - They fit well
Review: Came quickly, looked like original part - Quick delivery, good product. There is not much difference between the small and medium sizes. Measure carefully.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Best Sellers Rank | #26,448 in Health & Household ( See Top 100 in Health & Household ) #4 in Hearing Aid Domes |
| Customer Reviews | 4.6 out of 5 stars 528 Reviews |

## Images

![Phonak Open 4.0 Dome Small (0.29 inch=7.5mm) 10 Domes, Genuine OEM Switzerland Replacement by Sonova, Hearing Aid Domes for Phonak Audeo Marvel Paradise Lumity Accessories -1 Pack/10 Domes Total - Image 1](https://m.media-amazon.com/images/I/81qtsaMZDML.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works great
*by R***R on January 17, 2026*

They fit well

### ⭐⭐⭐⭐⭐ Came quickly, looked like original part
*by A***L on February 26, 2026*

Quick delivery, good product. There is not much difference between the small and medium sizes. Measure carefully.

### ⭐⭐⭐⭐⭐ Good value
*by M***. on December 17, 2025*

Fits several different hearing aids!

## Frequently Bought Together

- Phonak Open 4.0 Dome Small (0.29 inch=7.5mm) 10 Domes, Genuine OEM Switzerland Replacement by Sonova, Hearing Aid Domes for Phonak Audeo Marvel Paradise Lumity Accessories -1 Pack/10 Domes Total
- Wax Guards for Phonak Hearing Aid Accessories and Unitron RIC RITE Hearing Aid, Hearing Aid Filters (3 Packs/ 24 Pcs)
- Phonak Vented 4.0 Dome Small (0.29 inch=7.5mm) 10 Domes, Genuine OEM Switzerland Replacement by Sonova, Hearing Aid Domes for Phonak Audeo Marvel Paradise Lumity Accessories -1 Pack/10 Domes Total

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**Shop now:** [https://www.desertcart.is/products/580697091-phonak-open-4-0-dome-small-0-29-inch-7](https://www.desertcart.is/products/580697091-phonak-open-4-0-dome-small-0-29-inch-7)

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*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-04-22*