











Chi-Fi
Excellence
1 Year of
Warranty
12mm Dynamic
Drivers
2.5mm & 4.4mm
Balanced Plug
Single DD IEMs have always been a love for many audio enthusiasts, and knowing this FiiO introduces the FD3 Pro. They are well balanced and have a great sense of coherency, no doubt attributed to the use of a single driver. The FD3 Pro packs a serious punch and can electrify any mix you put through it.

FEATURES A FLAGSHIP-LEVEL DYNAMIC DRIVER WITH 1.5 TESLA MAGNETIC FLUX AND JAPANESE VOICE COIL
IEMs from FiiO's lineup successfully combine outstanding audio quality and sleek style. With its single dynamic driver setup and exceptional tone, clarity, and smooth bass texture, FiiO's dynamic driver lineup has consistently astounded critics. The FiiO FD3 Pro uses the top-tier 12mm dynamic driver, following in the footsteps of its FD line siblings like the well-recognised FD3. The inside of the FD3 Pro shell is embedded with a driver with a robust magnet of 1.5 Tesla magnetic flux, paired with an ultra-fine copper-clad aluminium Japanese Daikoku voice coil for accurate sound reproduction.



ULTRA-MODERN DLC DIAPHRAGM AND ACOUSTIC PRISM SYSTEM FOR LOW DISTORTION AND SUPERIOR CLARITY
The FiiO FD3 PRO was developed with components of the highest quality. Diamond-like carbon (DLC), which is rigid and surprisingly light, is used to make the diaphragm. Due to its ergonomic design, the FD3 PRO has a low level of undesired distortion and great transient response. To improve sound wave diffusion, modify the phase, and precisely control how sound waves move through the cavity, FD3 incorporates an Acoustic Prism Cavity. The Acoustic Prism Cavity enhances overall sound wave dispersal by eliminating high-frequency standing waves. The FiiO FD3 PRO provides unsurpassed sound quality with the most recent technology integrated into its design.



INDUSTRIAL GRADE ALUMINUM-MAGNESIUM ALLOY BODY FUSED WITH A SEMI-OPEN DESIGN
High-quality craftsmanship is the primary goal at FiiO and this is reflected in the FD3 Pro unmistakably. The FD3 PRO's main body is composed of an aluminium-magnesium alloy using an industrial process that combines hand polishing and five-axis CNC machining, making it incredibly strong and stylish. Based on the company's proprietary concept for Balanced Air Pressure technology, the FD3 PRO has a semi-open design. This semi-open design provides a natural sound and effectively protects your hearing by balancing air pressure within the body and leads to less fatigue on your eardrums. As a result, the listening experience is soothing and less fatiguing. Due to its semi-open design, the FD3 PRO offers good soundstage and imaging capabilities. You'll be able to visualise and position each instrument in your music. This semi-open design enhances the listening experience tenfolds, making the sound less forced.


A PERFECT BALANCE BETWEEN FORM AND FUNCTION WITH A UNIQUE CELLULOID PANEL
The look of the FiiO FD3 Pro is based on the theme of curves and is simple yet has a beautiful appearance. This is visible in the unique celluloid panel which is covered with 2.5D film coating glass for a Pure transparent look. For adjusting the frequency response of the earphones, the FD3 also has replaceable ear nozzles. The inner diameter of each sound tube varies even if their outside diameters are the same. The large inner diameter tube (black) produces detailed treble, and the small inner diameter tube (red) gives robust bass texture. This strategy is original and strikes the ideal mix between form and function.

HI-RES AUDIO CERTIFIED AND BUNDLED WITH 152-CORE HIGH-PURITY MONOCRYSTALLINE COPPER WITH MMCX CONNECTOR
FiiO FD3 Pro comes with a carefully engineered cable that enhances the listening experience. The FD3 Pro comes with an exclusive cable bundled with an 8-strand 152-core high-purity monocrystalline silver-plated copper cable in a Litz braided structure with interchangeable termination plugs, allowing you to switch between 2.5/3.5/4.4mm plugs depending on your source. The bundled cable features an MMCX connector for easy connectivity. FiiO FD3 PRO is a Hi-Res Audio certified earphone, the FD3 PRO can give fine details and resolution and is capable of reproducing music with exceptional clarity and vividness with its high-purity cable. The additional benefit of having interchangeable termination plugs is that you can plug the FD3 PRO in a balanced DAC & Amp with a 2.5mm or 4.4mm pentaconn output. The clarity, detail, and tone will be much enhanced as a result. The soundstage will open, giving you the impression that you are watching a live performance while seated in a concert hall.


DRIVER SIZE | 12 mm |
DRIVERS | Dynamic |
DIAPHRAGM MATERIAL | Diamond-Like Carbon diaphragm |
FREQUENCY RESPONSE | 10 Hz ~ 40 kHz |
IMPEDANCE | 32Ω@1 kHz |
SENSITIVITY | 111dB@1 mW |
MAX POWER | 100 mW |
WIRED CONNECTIVITY | 3.5 mm/4.4 mm/2.5 mm Plug |
MICROPHONE | No |
CONNECTOR | MMCX |
COMPATIBILITY | Universal |
WEARING STYLE | Over-the-ear |
DETACHABLE CABLE | Yes |
CABLE | 8-stranded high-purity monocrystalline copper cable |
CABLE LENGTH | About 120cm |
WEIGHT | 7.0g |
BOX CONTENTS | 1. FiiO FD3 Pro IEMs |
2. 8 strands of 19 wires each for a total of 152 wires braided cable | |
3. Balanced Eartips X 3 (SML) | |
4. Bass eartips X 3 (SML) | |
5. Vocal eartips X 3 (SML) | |
6. Foam eartips X 2 | |
7. Cleaning brush | |
8. Carrying case | |
9. MMCX assist tool | |
10. User manual | |
11. Interchangeable sound tube | |
12. Swappable Plug |
GENERIC NAME | Headphones |
COUNTRY OF ORIGIN | China |
IMPORTER DETAILS | Importers Name: Ferrari Video Address: 63/18, 1st Main Road, Gandhi Nagar, Chennai - 600020 Contact No: 044-24420733 |
NET QUANTITY | 1 |
--Balanced ear tips*3 pairs (SML)
--Bass ear tips*3 pairs (SML)
--Vocal ear tips*3 pairs (SML)
--Foam ear tips*2 pairs
--Cleaning brush
--Storage case
--MMCX assist tool
--Interchangeable sound tube*1 pair
1. The small hole in the front cavity is used to relieve air pressure. It can help to moderate pressures that happen to the ear canal when putting the FD3 Pro inside the ears. If the front hole is blocked, it would enhance the bass performance. However, hearing fatigue would also be caused easily due to increasing pressures in the ear canal.
2. The diaphragm of the FD3 Pro is made of Diamond-Like Carbon (DLC). Therefore, if the front pressure-relief hole is blocked, it will cause unneeded distortion due to slight transformation of the diaphragm when it is vibrating.
[Semi-open acoustic design] The semi-open acoustic 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 cavity, leading to less pressure on your eardrums. This makes your listening experience less tiring and the sound less forced.
[Front acoustic prism]
The acoustic prism so effectively used in the flagship FD5 for great sound quality is also featured in the FD3 Pro. 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 that will surely take your breath away.
Right/R: red
The FiiO FD3 Pro has unit markers on both earphone units: blue L on the left channel and red R on the right. Other than the letter marker, there are corresponding colors at the position of the MMCX connectors, left blue and right red. Please fit the correct channel according to the indication markers when changing the cable.
1 Year Warranty
Don't sweat it, this FiiO - FD3 Pro comes with a warranty
from FiiO that covers manufacturing defects.
All products featured on Headphone Zone are backed by an original manufacturer's warranty.
Read more about FiiO's warranty in India.