---
product_id: 658842216
title: "Diamond X1 OTC Hearing Aids Rechargeable with Bluetooth Customizable App Hearing Test, 4 Hearing Modes, Noise Reduction, for Mild to Moderate Hearing Loss, Black"
brand: "cearvol"
price: "NT$2059"
currency: TWD
in_stock: false
reviews_count: 5
url: https://www.desertcart.tw/products/658842216-diamond-x1-otc-hearing-aids-rechargeable-with-bluetooth-customizable-app
store_origin: TW
region: Taiwan
---

# Bluetooth 5.3 + customizable app control 16-Channel WDRC for crystal-clear sound 36h total battery life with fast charge Diamond X1 OTC Hearing Aids Rechargeable with Bluetooth Customizable App Hearing Test, 4 Hearing Modes, Noise Reduction, for Mild to Moderate Hearing Loss, Black

**Brand:** cearvol
**Price:** NT$2059
**Availability:** ❌ Out of Stock

## Summary

> 👂 Hear More, Miss Less — Elevate Your Everyday Soundscape

## Quick Answers

- **What is this?** Diamond X1 OTC Hearing Aids Rechargeable with Bluetooth Customizable App Hearing Test, 4 Hearing Modes, Noise Reduction, for Mild to Moderate Hearing Loss, Black by cearvol
- **How much does it cost?** NT$2059 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/658842216-diamond-x1-otc-hearing-aids-rechargeable-with-bluetooth-customizable-app)

## Best For

- cearvol enthusiasts

## Why This Product

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

## Key Features

- • **Power That Keeps Up:** Up to 36 hours of use with rapid 10-minute charging for 3 hours of uninterrupted hearing.
- • **Seamless Connectivity:** Bluetooth 5.3 ensures ultra-low latency streaming for calls and media, keeping you effortlessly connected.
- • **Adaptive Listening Modes:** Four environment-specific modes (Indoor, Conversation, Restaurant, Traffic) optimize clarity wherever you go.
- • **Precision Sound Engineering:** 16-channel WDRC tech delivers rich, detailed audio tailored to your unique hearing profile.
- • **Discreet, Comfortable Design:** Sleek, AirPod-style earbuds with multiple fit options for all-day comfort and invisibility.

## Overview

The Cearvol Diamond X1 OTC Hearing Aids combine advanced 16-channel WDRC sound processing with Bluetooth 5.3 for seamless streaming and calls. Designed for mild to moderate hearing loss, they feature four customizable listening modes and a companion app with in-app hearing tests for personalized tuning. With up to 36 hours of battery life and a fast-charging case, these nearly invisible, ergonomic earbuds offer discreet comfort and active noise reduction, making them the smart, stylish choice for modern professionals seeking enhanced auditory clarity.

## Description

Cearvol X1 Hearing AidsExperience advanced hearing technology with the Cearvol X1 hearing aids, designed to enhance your auditory experience with clarity and comfort. The Cearvol X1 combines cutting-edge features and sleek design to meet the needs of those with mild to moderate hearing loss.Key Features:Advanced Sound Processing: The Cearvol X1 utilizes state-of-the-art sound processing technology to deliver clear and natural sound. Its advanced noise reduction system minimizes background noise, ensuring that conversations and important sounds are heard more clearly.Customizable Hearing Modes: Equipped with four distinct hearing modes, the Cearvol X1 allows users to adjust settings based on their environment. Whether you're in a quiet room, a bustling café, or a noisy street, you can easily switch modes to optimize sound quality.Comfort and Discreet Design: The Cearvol X1 is designed with comfort in mind. Its ergonomic fit and switchable ear caps ensure a snug and comfortable wear throughout the day. The compact, Bluetooth earbud design makes the hearing aids nearly invisible, maintaining your discreet appearance.User-Friendly Operation: With a simple and intuitive interface, the Cearvol X1 is easy to operate. The companion app, available on both iOS and Android, allows for convenient online hearing tests and settings adjustments, making it easier to personalize your hearing experience.Long Battery Life: Enjoy up to 36 hours of usage on a single charge, with just 2 hours needed to fully recharge. This long-lasting battery life ensures that your hearing aids are ready whenever you need them.Portable and Rechargeable: The Cearvol X1’s compact design allows it to fit easily into your pocket, making it perfect for travel. Its rechargeable feature adds convenience, eliminating the need for frequent battery changes.Support and Warranty:Cearvol provides reliable customer support(Email/Phone call/Social Media) during business hours, Monday through Friday, from 9:00 a.m. to 6:00 p.m. For any issues or questions, the support team is available to assist you.The Cearvol X1 hearing aids combine functionality, comfort, and discreetness to enhance your hearing experience in various environments. Discover a new level of auditory clarity with the Cearvol X1.

Review: I have tried aids from an audiologist for Thousands of dollars, I did not like them. These are perfect for me and sound better than the expensive ones. I actually bought two pair. One charging case had an issue and they sent me two new ones for free. They have also been very conscientious with follow up communication to see if I had questions or needed help. The phone app and aids are fantastic. I always wondered why no one made air pod looking hearing aids that pair to your phone. I can hear great I can listen to media from my phone with the aids I can talk on the phone with the aids and people can hear me with no issues Everything about them is Perfect! I highly recommend them!
Review: This is my third pair of OTC aids and I have only owned the Cearvols for 10 days. My previous pairs were other brands and were hearing amplifiers vs Aids. These are a step up from amplifiers, no question. Hearing is very individual and is not a 'one size fits all' scenario. That is one reason why I like these aids better than what I used previously - they come with an app to control the aids and to either load existing audiogram info or perform your own hearing test/audio profile. Like an audiologist would perform. In effect, you become your own audiologist which may be good or bad depending on your abilities. The app is a bit of a double edged sword bc I feel it still needs some work ie: I find the haptic controls for volume don't always work on the first, second or third swipe - why? Pretty basic stuff. Also, my hearing profile failed to load multiple times but support was very responsive to my emails. In the end, it loaded somehow when I tried again the next day. That's the bad news but not dealbreakers in my case. Most functions work well and the app overall is well designed and simple to use. I am no techie but have used many apps so am comfortable with them which may not be the case if you buy these for your aged parent. While I am still getting used to these, overall my initial impressions are positive and I hope to improve the aid tailoring as I use them more and in varied environments. In summary: Pro: 1. App that can download your own audiogram or perform your own hearing test. You can also choose to manually adjust the hearing profiles instead of using your audiogram which I did at first 2. 4 Preset environments to quickly change sound profile 3. Form factor. A personal choice but I like the airpod style. They stay secure while eating/talking. In the ear kept falling out in my case and over the ear interferes with my glasses and masks. 4. Seem well made. Time will tell. Charge case indicates power bank charge status and app indicates L/R aid battery status. Mine came charged from factory and I still have 2 of 3 bars power bank charge after 10 days w/o charging it. Aid batteries last longer than I've been able to wear them. Other reviewers have had DOA product so perhaps I got lucky. 5. Much improved in windy outdoor environments bc of ear tips that block wind better than my previous product 6. Excellent for phone calls (iPhone 14 in my case). In fact, this is its best feature. I was shocked at the clarity and natural voice sound of callers. It was like having perfect hearing again. If Clearvol could extend this sound quality/clarity to normal use it would change the industry. Cons: 1. Somewhat mechanical or tinny sound quality under normal use. This may be something that I can improve with further tailoring. It is also something that many hearing aid users experience when they have paid thousands for their devices so I generally accept this as a function of most aids. 2. As ear buds for music they suck. Luckily I don't use them for this. I just want to hear people talking clearly 3. Poor haptic response for volume control on app. Difficulty loading hearing test profile. Once profile loaded, overall sound levels increased substantially. I may do another test to see if that makes a difference or go back to setting modes manually. Perhaps a new App release fixes this as I am currently on 2.5 when I know 3.2 exists. However, the app wont refresh to 3.2 for some reason - I have a help request submitted. 4. Would prefer noise cancellation and voice enhancement to be even better. Who wouldn't? Realistically I think the app and my user experience will keep improving over time (my hope) and I will attempt to post an update in a few months. While I have some digs against a few specific things, overall my 4/5 rating reflects my positive view of this product and I would recommend it. So far, I am happy with them. Could they be better? Sure, but anyone with hearing issues should try these before spending thousands on devices that may or may not work just as well. Will your hearing ever be perfect again? Nope (except in phone mode!) , but these may work great for you and perform at 80-90% of prescription aids for a fraction of the price. 4 Month update: I am liking these Aids more and more. After a somewhat rocky start with the app (although excellent customer support is available) things have calmed down a bit. I think Cearvol is taking customer feedback seriously and are continuing to improve the app. I am on app version 3.9 now. Still waiting for haptic control improvements and ability to toggle on/off your audiogram. Aid batteries last all day and charge bank/case recharges 2 times or fast charges in 10 min for 3 hrs as described. So far the best OTC device I have tried. Love the overall ease of use, the well designed app (with a few bugs yet), the ability to create or use an existing audiogram, comfort and incredible value. The Diamond X1 isn't a D quality flawless piece, but it ranks pretty high up. Officially I am fan and recommend them for anyone with mild-moderate hearing loss along with a few caveats. But I am confident that Cearvol will address issues in the queue.

## Features

- 16-Channel WDRC Technology and Bluetooth 5.3: The Diamond X1 features 16-channel Wide Dynamic Range Compression (WDRC) technology, allowing precise amplification across various frequencies for a richer and more detailed listening experience. Bluetooth 5.3 provides lower latency for superior audio streaming, ensuring uninterrupted sound transmission to meet all your listening needs (*supports Bluetooth streaming and phone calls)
- True OTC Hearing Aid: The Diamond X1 is an advanced hearing aid designed for mild to moderate hearing loss and is suitable for individuals aged 18 and above, especially seniors and adults. Proper use of hearing aids can enhance spatial awareness, speech recognition, and communication abilities for those with hearing loss
- Four Adjustable Listening Modes for Various Environments: Easily switch between four different listening modes (Indoor; Conversation; Restaurant; Traffic) with a simple touch, accompanied by voice prompts indicating the current mode. Each mode allows independent parameter adjustments to ensure the best experience. Its nearly invisible design makes it discreet and convenient for various scenarios, such as concerts, indoor activities, commuting, shopping, and conversations, making it an excellent choice for everyday use
- Customizable App: You can effortlessly customize your hearing experience using the companion app, which supports in-app hearing tests, references professional hearing test results, or allows for personalized adjustments based on preset levels of hearing loss. Additionally, ongoing OTA upgrades ensure that any issues during use are resolved, providing you with the ultimate experience
- Long Battery Life with Fast Charging: The hearing aids, combined with the rechargeable charging case, offer a total battery life of up to 36 hours (12 hours in the earbuds plus 24 hours in the charging case). A 10-minute charge provides up to 3 hours of use, seamlessly fitting into your daily routine. The charging case also features an LED indicator to show the remaining battery life. The auto-on/off design ensures convenience
- Noise Reduction, Voice Enhancement, and Directional Sound Collection: 1. Equipped with active noise reduction technology, with up to 5 adjustable levels to minimize unwanted wind and background noise, enhancing the clarity of conversations and other important sounds. 2. Supports up to 5 adjustable levels of voice enhancement to improve voice collection. 3. Provides directional signal collection to amplify sounds from the front or all-around 360° (selectable), helping you maintain clear hearing even in crowded environments
- Convenient Operation and Comfort: The earbud buttons allow you to control functions such as mode switching, volume adjustment, answering/ending calls, and activating voice assistants (Siri/Bixby/others). Flexible earbud sizes and fits: They are available in S, M, and L sizes, with options for closed and open-fit types to ensure a secure and comfortable fit according to personal preference

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D54M8HT6 |
| Are batteries included? | Yes |
| Batteries | 1 Lithium Polymer batteries required. (included) |
| Battery Cell Composition | Lithium |
| Battery Description | Rechargeable Lithium-Polymer |
| Battery Weight | 0.5 Grams |
| Battery type | Rechargeable Lithium-Polymer |
| Brand | Cearvol |
| Colour | black |
| Compatible Devices | Smartphone, Tablet |
| Control Type | App Control |
| Customer Reviews | 3.5 3.5 out of 5 stars (32) |
| Date First Available | 11 September 2024 |
| Fit Type | In-Ear |
| Form Factor | In-Ear |
| Included Components | 1* Charging Case; 1* Pair of Cearvol Diamond X1 Hearing Aids; 1* Type C Charing Cable; 3* Pairs of Open Domes(Size S, M, L); 3* Pairs of Closed Domes(Size S, M, L); 1* Clearing Brush; 1* User Manual; 1* Quick Start Guide |
| Item Weight | 2.86 g |
| Item model number | DiamondX1 |
| Lithium Battery Packaging | Batteries packed with equipment |
| Lithium battery Weight | 0.02 Grams |
| Lithium battery energy content | 500 Milliampere Hour (mAh) |
| Manufacturer | Cearvol |
| Material | Plastic |
| Model Name | Diamond X1 |
| Model number | DiamondX1 |
| Net Quantity | 2.0 Count |
| Noise Control | Active Noise Cancellation |
| Number of Batteries | 1 Lithium Polymer batteries required. (included) |
| Number of lithium ion cells | 1 |
| Outer Material | plastic |
| Power Source | Battery Powered |
| Product Dimensions | 5L x 2W Centimeters |
| Rechargeable Battery Included | Yes |
| Special Feature | Adjustable, Lightweight, Noise Reduction, Rechargeable, Sweatproof |
| Style | Bluetooth Earbud Aesthetic, Ergonomic Fit, Modern Finish, and User-Friendly Controls |
| UPC | 614141647538 |

## Product Details

- **Brand:** Cearvol
- **Colour:** black
- **Material:** Plastic
- **Model Name:** Diamond X1
- **Style:** Bluetooth Earbud Aesthetic, Ergonomic Fit, Modern Finish, and User-Friendly Controls

## Images

![Diamond X1 OTC Hearing Aids Rechargeable with Bluetooth Customizable App Hearing Test, 4 Hearing Modes, Noise Reduction, for Mild to Moderate Hearing Loss, Black - Image 1](https://m.media-amazon.com/images/I/3128UjD8G2L.jpg)
![Diamond X1 OTC Hearing Aids Rechargeable with Bluetooth Customizable App Hearing Test, 4 Hearing Modes, Noise Reduction, for Mild to Moderate Hearing Loss, Black - Image 2](https://m.media-amazon.com/images/I/417PWe2ctcL.jpg)
![Diamond X1 OTC Hearing Aids Rechargeable with Bluetooth Customizable App Hearing Test, 4 Hearing Modes, Noise Reduction, for Mild to Moderate Hearing Loss, Black - Image 3](https://m.media-amazon.com/images/I/41UYb09AnUL.jpg)
![Diamond X1 OTC Hearing Aids Rechargeable with Bluetooth Customizable App Hearing Test, 4 Hearing Modes, Noise Reduction, for Mild to Moderate Hearing Loss, Black - Image 4](https://m.media-amazon.com/images/I/41eZISrxIFL.jpg)
![Diamond X1 OTC Hearing Aids Rechargeable with Bluetooth Customizable App Hearing Test, 4 Hearing Modes, Noise Reduction, for Mild to Moderate Hearing Loss, Black - Image 5](https://m.media-amazon.com/images/I/41jsUosPeRL.jpg)

## Questions & Answers

**Q: Are Cearvol devices amplifiers or hearing aids?**
A: Cearvol devices are true OTC hearing aids, not amplifiers. Amplifiers boost all sounds, while Cearvol hearing aids selectively amplify specific frequencies based on the user’s hearing profile, enhancing speech clarity and reducing background noise.

**Q: How can I assess the degree of my hearing loss?**
A: You can assess your hearing loss with Cearvol’s app, which offers an online hearing test in just a few minutes. It generates an audiogram to apply to your hearing aids. We also recommend personalizing settings.

**Q: What type of hearing loss do these hearing aids support?**
A: The Cearvol OTC hearing aids are medical devices used to improve hearing sense for adults 18 and older with perceived mild to moderate hearing loss in both ears. They are not for individuals with severe to profound hearing loss.

**Q: How long will it take to get used to my hearing aids?**
A: Audiologists recommend 3 weeks for your brain to adapt to wearing hearing aids. In week 1, wear your hearing aids for 1-2 hours per day. In week 2, 3-4 hours per day. After 3 weeks, you are ready for 6+ hours per day and get used to them.

**Q: How can I reduce feedback noises like beeping or whistling?**
A: You could try lowering the volume, switching to different ear tips, and upgrading the firmware of hearing aids. Additionally, adjust noise reduction and speech enhancement settings to focus on the sounds you want to hear for an improved experience.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by V***L on 1 December 2024*

I have tried aids from an audiologist for Thousands of dollars, I did not like them. These are perfect for me and sound better than the expensive ones. I actually bought two pair. One charging case had an issue and they sent me two new ones for free. They have also been very conscientious with follow up communication to see if I had questions or needed help. The phone app and aids are fantastic. I always wondered why no one made air pod looking hearing aids that pair to your phone. I can hear great I can listen to media from my phone with the aids I can talk on the phone with the aids and people can hear me with no issues Everything about them is Perfect! I highly recommend them!

### ⭐⭐⭐⭐ Review
*by M***Y on 30 July 2024*

This is my third pair of OTC aids and I have only owned the Cearvols for 10 days. My previous pairs were other brands and were hearing amplifiers vs Aids. These are a step up from amplifiers, no question. Hearing is very individual and is not a 'one size fits all' scenario. That is one reason why I like these aids better than what I used previously - they come with an app to control the aids and to either load existing audiogram info or perform your own hearing test/audio profile. Like an audiologist would perform. In effect, you become your own audiologist which may be good or bad depending on your abilities. The app is a bit of a double edged sword bc I feel it still needs some work ie: I find the haptic controls for volume don't always work on the first, second or third swipe - why? Pretty basic stuff. Also, my hearing profile failed to load multiple times but support was very responsive to my emails. In the end, it loaded somehow when I tried again the next day. That's the bad news but not dealbreakers in my case. Most functions work well and the app overall is well designed and simple to use. I am no techie but have used many apps so am comfortable with them which may not be the case if you buy these for your aged parent. While I am still getting used to these, overall my initial impressions are positive and I hope to improve the aid tailoring as I use them more and in varied environments. In summary: Pro: 1. App that can download your own audiogram or perform your own hearing test. You can also choose to manually adjust the hearing profiles instead of using your audiogram which I did at first 2. 4 Preset environments to quickly change sound profile 3. Form factor. A personal choice but I like the airpod style. They stay secure while eating/talking. In the ear kept falling out in my case and over the ear interferes with my glasses and masks. 4. Seem well made. Time will tell. Charge case indicates power bank charge status and app indicates L/R aid battery status. Mine came charged from factory and I still have 2 of 3 bars power bank charge after 10 days w/o charging it. Aid batteries last longer than I've been able to wear them. Other reviewers have had DOA product so perhaps I got lucky. 5. Much improved in windy outdoor environments bc of ear tips that block wind better than my previous product 6. Excellent for phone calls (iPhone 14 in my case). In fact, this is its best feature. I was shocked at the clarity and natural voice sound of callers. It was like having perfect hearing again. If Clearvol could extend this sound quality/clarity to normal use it would change the industry. Cons: 1. Somewhat mechanical or tinny sound quality under normal use. This may be something that I can improve with further tailoring. It is also something that many hearing aid users experience when they have paid thousands for their devices so I generally accept this as a function of most aids. 2. As ear buds for music they suck. Luckily I don't use them for this. I just want to hear people talking clearly 3. Poor haptic response for volume control on app. Difficulty loading hearing test profile. Once profile loaded, overall sound levels increased substantially. I may do another test to see if that makes a difference or go back to setting modes manually. Perhaps a new App release fixes this as I am currently on 2.5 when I know 3.2 exists. However, the app wont refresh to 3.2 for some reason - I have a help request submitted. 4. Would prefer noise cancellation and voice enhancement to be even better. Who wouldn't? Realistically I think the app and my user experience will keep improving over time (my hope) and I will attempt to post an update in a few months. While I have some digs against a few specific things, overall my 4/5 rating reflects my positive view of this product and I would recommend it. So far, I am happy with them. Could they be better? Sure, but anyone with hearing issues should try these before spending thousands on devices that may or may not work just as well. Will your hearing ever be perfect again? Nope (except in phone mode!) , but these may work great for you and perform at 80-90% of prescription aids for a fraction of the price. 4 Month update: I am liking these Aids more and more. After a somewhat rocky start with the app (although excellent customer support is available) things have calmed down a bit. I think Cearvol is taking customer feedback seriously and are continuing to improve the app. I am on app version 3.9 now. Still waiting for haptic control improvements and ability to toggle on/off your audiogram. Aid batteries last all day and charge bank/case recharges 2 times or fast charges in 10 min for 3 hrs as described. So far the best OTC device I have tried. Love the overall ease of use, the well designed app (with a few bugs yet), the ability to create or use an existing audiogram, comfort and incredible value. The Diamond X1 isn't a D quality flawless piece, but it ranks pretty high up. Officially I am fan and recommend them for anyone with mild-moderate hearing loss along with a few caveats. But I am confident that Cearvol will address issues in the queue.

### ⭐ Review
*by C***S on 5 November 2025*

These were working great for me, but in the last month or so I've been unable to log into the app, the app didn't require login before. When I tried to log in, the app said that it was sending me a code in email but I never received the code, even in the spam folder. Today I tried again and was able to get the one time code to try and log in and now they're asking for demographic information and once I fill that out the app hangs, I'm still unable to login. This means I'm unable to update the hearing test and apply corrections to my device. Update: after uninstalling and reinstalling the app I'm finally able to log in and update the device with a hearing test.

## Frequently Bought Together

- Cearvol Diamond X1 OTC Hearing Aids Rechargeable with Bluetooth Customizable App for iOS/Android, Noise Reduction, for Mild to Moderate Hearing Loss, FSA HSA Fund Available, Black
- Behind The Ear Sound Amplifier - BTE Hearing Ear Amplification Device and Digital Hearing Aids for Seniors PSAD for The Hard of Hearing, Noise Reducing, Black, by MEDca
- Hearing Aids for Seniors Severe Hearing Loss, Rechargeable with Noise Cancelling (Pair), 4 Modes - Comfort Design Ear Hearing Aid, PSAP

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*Product available on Desertcart Taiwan*
*Store origin: TW*
*Last updated: 2026-02-09*