---
product_id: 347124250
title: "FD3 PRO Earphones in-Ear Earbuds High Resolution 1DD Deep Bass Detachable MMCX Connector with 2.5/3.5/4.4mm Plugs DLC Black"
brand: "fiio"
price: "R$2593"
currency: BRL
in_stock: true
reviews_count: 9
category: "Fii O"
url: https://www.desertcart.com.br/products/347124250-fd3-pro-earphones-in-ear-earbuds-high-resolution-1dd-deep
store_origin: BR
region: Brazil
---

# Semi-open design for natural, fatigue-free listening DLC diamond diaphragm for ultra-clear sound Detachable MMCX cable with 3 plug options FD3 PRO Earphones in-Ear Earbuds High Resolution 1DD Deep Bass Detachable MMCX Connector with 2.5/3.5/4.4mm Plugs DLC Black

**Brand:** fiio
**Price:** R$2593
**Availability:** ✅ In Stock

## Summary

> 🎶 Elevate your audio game with FD3 Pro — where precision meets power.

## Quick Answers

- **What is this?** FD3 PRO Earphones in-Ear Earbuds High Resolution 1DD Deep Bass Detachable MMCX Connector with 2.5/3.5/4.4mm Plugs DLC Black by fiio
- **How much does it cost?** R$2593 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/347124250-fd3-pro-earphones-in-ear-earbuds-high-resolution-1dd-deep)

## Best For

- fiio enthusiasts

## Why This Product

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

## Key Features

- • **Acoustic Prism Magic:** Enjoy immersive sound clarity by eliminating high-frequency standing waves and time delays.
- • **Flagship Diamond Diaphragm:** Experience pristine, distortion-free audio with cutting-edge DLC driver technology.
- • **Customizable Sound Signature:** Switch between 2.5/3.5/4.4mm plugs and sound tubes to tailor your audio vibe.
- • **Lightweight Industrial Design:** Carry premium aluminum-magnesium alloy earbuds that blend durability with sleek portability.
- • **Pro-Grade Silver-Plated Cable:** Unlock crystal-clear notes and enhanced stereo separation with a high-purity monocrystalline cable.

## Overview

The FIIO FD3 PRO earphones feature a flagship DLC diamond diaphragm dynamic driver delivering high-resolution, distortion-free sound. Its semi-open design balances air pressure for natural listening comfort, while the acoustic prism enhances sound wave diffusion and timing. Equipped with a detachable MMCX cable supporting 2.5/3.5/4.4mm plugs, these lightweight aluminum-magnesium earbuds offer customizable sound profiles and premium build quality, perfect for audiophiles and professionals seeking deep bass and crisp clarity.

## Description

Buy FIIO FD3 PRO Earphones in-Ear Earbuds High Resolution 1DD Deep Bass Detachable MMCX Connector with 2.5/3.5/4.4mm Plugs DLC Black: Earbud Headphones - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Good well rounded IEM - This is the non pro version. This is a good, well rounded IEM. I give it 4.5 stars. It is light and with the right size tip there is no comfort issues. It tends to be a bit on the bright side. Sound tube and bass tips tame it down to a good level. It delivers clean and crisp sound in all genres. The vocals and treble are very good. The bass benefits from amping. I use it with a portable amp (Fiio A5), with the bass boost on, and it improves the bass definition and power. I still feel the FH3 has a better more defined and beautiful bass. I was hoping they can reproduce that in the FD3. Compared to the FH3, the FH3 was bigger and felt nicer sitting in the ear. However both are extremely comfortable. Also the FH3 felt a bit higher quality perhaps because of it’s design. The FD3 quality is very good, it’s just the feel of the FH3 was a little more upscale. The FH3 has a better more defined and cleaner bass, but the mid and upper frequencies were too thin with my equipment. It also has some weirdness in the treble of certain tracks especially acoustics. The FD3 has none of those issues. The FD3 has full bodied mids and highs, a little less detailed but still very good. With the 2 different sound tubes and the different tips you can dial the sound to the way you prefer, or to the genre you are listening to and it makes a difference. The basic cable is fine. I heard the pro cable may make the sound brighter. I don’t know how true that is. I wanted mine to be on the warmer side because the DAC I use tend to be on the brighter side. I had returned the FH3 about a month ago because I could not love the vocals and the treble. I will be keeping the FD3. Update 11/25/2021: I have upgraded the basic cable to a balanced cable. If you are not using a balanced output you are not getting the most out of the FD3. Despite using the 3.5mm with a DAC dongle and a portable amp the balanced cable was significantly better out of the DAC alone! Everything sounds cleaner and crisper. The bass is tighter, there is more separation, the stereo effect is noticeably better. So this lets me enjoy the music at a lower volume. For reference I am using a HIDIZS S9 (not pro) and Tripowin Altea 2.5mm cable which is a nice thick cable. I use the red sound tube with the bass tips and it balances out the sound pretty well. I think the sound tubes are a major selling point as you don’t to have to be stuck with one tonality.
Review: Beautiful sound, audiophile bass - Amazing IEMs, not just for the money but in general. I own many “audiophile” headphones and these compare with the best of them. I wanted something with lots of clear and defined bass, while retaining detailed mids and crisp highs, and these deliver. I use the red sound tubes and vocal tips because they are the most comfortable and give the best, most reliable seal, which provides the best bass and sound in general. If you can EQ, then cutting out some 2.5khz and to a lesser extent 5.5khz frequency gives an even smoother high-mid/low-treble sound, as they have peaks in that range that can become a bit tiresome with certain songs. I also add a low shelf (bass boost) for some types of music and they can handle it like a champ. However, even without EQ they sound great although a little bright, but with the many different tips and sound tubes they’re customizable enough. Great value for the money I recommend to anyone who wants better sound than what even the best bluetooth earphones can provide, casual listeners and “audiophiles” alike.

## Features

- [Flagship-level DLC diamond diaphragm, for an amazing, powerful sound]: The FD3 Pro headphones benefits from the numerous advantages of FiiO's new dynamic driver. The diaphragm is made of Diamond Like Carbon (DLC) which is both impressively rigid and helps to reduce unneeded distortion yet also surprisingly light, allowing the driver to have excellent transient response. The result is a driver with excellent sound quality and minimal distortion with the added bonus of being ultra-sensitive.
- [Flagship-grade acoustic prism, take your breath away]: The acoustic prism so effectively used in the flagship FD5 for great sound quality is also featured in the FD3. Like with the FD5, the acoustic prism system brings numerous benefits such as eliminating high frequency standing waves, enhancing overall sound wave diffusion, and even effectively solving the problem of time delay caused by sound wave propagation path in the cavity. This all leads to marvelous sound quality.
- [Better sound with semi-open design,makes you less tiring and the sound less forced]: The semi-open design of the FD3 based on FiiO's patented technology for balanced air pressure within brings several advantages. Not only does such a design lead to more natural sound, but it also effectively protects your hearing by balancing air pressure within the FD3 leading to less pressure on your eardrums.
- [2.5D film coating glass faceplate] The unique celluloid panel is covered with 2.5D film coating glass for a pure yet fresh transparent look. And the aluminum-magnesium alloy of the body makes the FD3 exceptionally light, making it easier and more pleasurable to carry around. And the aluminum-magnesium alloy main body is made in an industrial process combining five-axis CNC processing and hand polishing.
- [Well-equipped just for you] The FD3 Pro comes with an exclusive cable made of high-purity monocrystalline silver-plated copper, with 8 strands of 19 wires each for a total of 152 wires braided together in Litz Type 2 style. In addition, the cable features left blue and right red markings for convenience as well as interchange audio plugs, allowing you to freely switch between 2.5/3.5/4.4mm plugs depending on your source. With this cable, every music note has never been clearer!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09B2BD5J9 |
| Age Range (Description) | Adult |
| Audio Driver Size | 12 Millimeters |
| Audio Driver Type | Dynamic Driver |
| Batteries | 1 Lithium Polymer batteries required. |
| Best Sellers Rank | #42,070 in Electronics ( See Top 100 in Electronics ) #2,246 in Earbud & In-Ear Headphones |
| Cable Feature | Detachable |
| Carrying Case Color | Black |
| Carrying Case Material | Aluminium or a material suitable for protecting earphones, possibly black in color |
| Compatible Devices | Monitor |
| Connectivity Technology | Wired |
| Control Method | Remote |
| Control Type | Media Control |
| Customer Package Type | [Protective Packaging] |
| Customer Reviews | 3.8 3.8 out of 5 stars (396) |
| Date First Available | July 20, 2021 |
| Earpiece Shape | Rounded |
| Generation | 2 |
| Hardware Interface | 3.5mm Audio |
| Headphones Jack | 3.5 mm Jack |
| Included Components | Cable |
| Input Device Interface | Audio jack |
| Item Weight | 0.247 ounces |
| Item model number | 6953175740759 |
| Language | English |
| Manufacturer | FIIO |
| Material | Aluminum |
| Model Name | FD3 Pro |
| Noise Control | None |
| Number of Items | 1 |
| Product Dimensions | 9.45 x 27.17 x 0.98 inches |
| Recommended Uses For Product | Cycling, Exercising, Running |
| Series Number | 6953175740759 |
| Special Feature | in-ear |
| Specific Uses For Product | Sport |
| Style | in-ear |
| Supports Bluetooth Technology | No |
| Units | 1.0 Count |
| Water Resistance Level | Not Water Resistant |
| Wireless Communication Technology | Bluetooth |

## Product Details

- **Brand:** FiiO
- **Color:** FD3 PRO black
- **Ear Placement:** In Ear
- **Form Factor:** In Ear
- **Impedance:** 32 Ohms

## Images

![FD3 PRO Earphones in-Ear Earbuds High Resolution 1DD Deep Bass Detachable MMCX Connector with 2.5/3.5/4.4mm Plugs DLC Black - Image 1](https://m.media-amazon.com/images/I/71MidkvUTiL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good well rounded IEM
*by P***9 on August 16, 2021*

This is the non pro version. This is a good, well rounded IEM. I give it 4.5 stars. It is light and with the right size tip there is no comfort issues. It tends to be a bit on the bright side. Sound tube and bass tips tame it down to a good level. It delivers clean and crisp sound in all genres. The vocals and treble are very good. The bass benefits from amping. I use it with a portable amp (Fiio A5), with the bass boost on, and it improves the bass definition and power. I still feel the FH3 has a better more defined and beautiful bass. I was hoping they can reproduce that in the FD3. Compared to the FH3, the FH3 was bigger and felt nicer sitting in the ear. However both are extremely comfortable. Also the FH3 felt a bit higher quality perhaps because of it’s design. The FD3 quality is very good, it’s just the feel of the FH3 was a little more upscale. The FH3 has a better more defined and cleaner bass, but the mid and upper frequencies were too thin with my equipment. It also has some weirdness in the treble of certain tracks especially acoustics. The FD3 has none of those issues. The FD3 has full bodied mids and highs, a little less detailed but still very good. With the 2 different sound tubes and the different tips you can dial the sound to the way you prefer, or to the genre you are listening to and it makes a difference. The basic cable is fine. I heard the pro cable may make the sound brighter. I don’t know how true that is. I wanted mine to be on the warmer side because the DAC I use tend to be on the brighter side. I had returned the FH3 about a month ago because I could not love the vocals and the treble. I will be keeping the FD3. Update 11/25/2021: I have upgraded the basic cable to a balanced cable. If you are not using a balanced output you are not getting the most out of the FD3. Despite using the 3.5mm with a DAC dongle and a portable amp the balanced cable was significantly better out of the DAC alone! Everything sounds cleaner and crisper. The bass is tighter, there is more separation, the stereo effect is noticeably better. So this lets me enjoy the music at a lower volume. For reference I am using a HIDIZS S9 (not pro) and Tripowin Altea 2.5mm cable which is a nice thick cable. I use the red sound tube with the bass tips and it balances out the sound pretty well. I think the sound tubes are a major selling point as you don’t to have to be stuck with one tonality.

### ⭐⭐⭐⭐⭐ Beautiful sound, audiophile bass
*by R***J on December 31, 2022*

Amazing IEMs, not just for the money but in general. I own many “audiophile” headphones and these compare with the best of them. I wanted something with lots of clear and defined bass, while retaining detailed mids and crisp highs, and these deliver. I use the red sound tubes and vocal tips because they are the most comfortable and give the best, most reliable seal, which provides the best bass and sound in general. If you can EQ, then cutting out some 2.5khz and to a lesser extent 5.5khz frequency gives an even smoother high-mid/low-treble sound, as they have peaks in that range that can become a bit tiresome with certain songs. I also add a low shelf (bass boost) for some types of music and they can handle it like a champ. However, even without EQ they sound great although a little bright, but with the many different tips and sound tubes they’re customizable enough. Great value for the money I recommend to anyone who wants better sound than what even the best bluetooth earphones can provide, casual listeners and “audiophiles” alike.

### ⭐ Extremely Regrettable Purchase
*by R***N on November 12, 2025*

There's a lot of issues with these earbuds, but first the pros: - Nice holder case for it and all the spare parts - Extra speaker parts to replace - Lot's of ear options - A few extras in the case - The sound is pretty nice for the most part, when it works. And now the cons: Out of the box left ear didn't work. Switched the ear piece to the spare and it worked fine. Then the right ear stopped working a few weeks later. Switched to the spare no issues... Or so I thought, but I would regularly find that they unscrewed themselves constantly so I would have to search around for that spare until I eventually lost it outdoors because it wouldn't stay screwed in. So I went and started using the original and have been having a ton of issues. For one, the audio just cuts out randomly or starts going static. I think there's something wrong with the wire as out of the box I had issues where if I pressed a particular part of the wire it would stop working - Now it's the opposite where I need to press it for it to work. Also can't get them to stay in my ears but that might be more of a me issue. The audio quality is inconsistent, its louder in one ear than the other... I could go on. I've had an absolute nightmare with these. They are NOT worth $150. Very unfortunate that I basically threw away $150.

## Frequently Bought Together

- FiiO FD3 PRO Earphones in-Ear Earbuds High Resolution 1DD Deep Bass Detachable MMCX Connector with 2.5/3.5/4.4mm Plugs DLC Black
- Shure RMCE-UNI Remote Mic Universal Communication Cable for Detachable SE Earbuds Earphones - 3.5mm Connector, 50-inches Long - Calls, Voice Prompts, Volume/Playback Control on Apple & Android Devices
- Anker USB C to 3.5mm Audio Adapter, Male to Female Nylon Cable for Samsung S20/S20+/S20 Ultra, Pixel 4/+ 4XL, and More Type C Devices

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.com.br/products/347124250-fd3-pro-earphones-in-ear-earbuds-high-resolution-1dd-deep](https://www.desertcart.com.br/products/347124250-fd3-pro-earphones-in-ear-earbuds-high-resolution-1dd-deep)

---

*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-03-02*