---
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: "€ 19.00"
currency: EUR
in_stock: true
category: "Otto Tech"
url: https://www.desertcart.fr/products/580697091-phonak-open-4-0-dome-small-0-29-inch-7
store_origin: FR
region: France
---

# 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:** € 19.00
**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?** € 19.00 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN  | B0CK5QWFSK |
| Best Sellers Rank | #34,040 in Health & Household ( See Top 100 in Health & Household ) #8 in Hearing Aid Domes |
| Customer Reviews | 4.6 4.6 out of 5 stars (564) |
| Date First Available  | September 30, 2023 |
| Manufacturer  | Sonova |
| Product Dimensions  | 1.93 x 1.73 x 0.75 inches; 0.63 ounces |

## 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)
![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 2](https://m.media-amazon.com/images/I/71RRlKRg+kL.jpg)
![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 3](https://m.media-amazon.com/images/I/81YyguHoU2L.jpg)
![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 4](https://m.media-amazon.com/images/I/71DVicXosQL.jpg)
![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 5](https://m.media-amazon.com/images/I/71EBuX9we-L.jpg)

## Available Options

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

## 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.fr/products/580697091-phonak-open-4-0-dome-small-0-29-inch-7](https://www.desertcart.fr/products/580697091-phonak-open-4-0-dome-small-0-29-inch-7)

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*Product available on Desertcart France*
*Store origin: FR*
*Last updated: 2026-06-19*