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Fearless Audio S4
Fearless Audio S4
Fearless Audio S4

Fearless Audio S4

Regular price $289.00



Click for Customizing Faceplate

Note For Custom IEM Order

For Custom IEM one need to send his/her impressions to us on the address, which will be emailed to you after order confirmation.

Shipping time is two to three weeks after confirmation of order for Universal and for Custom's you can add days for impressions' will reach to us.

Shipping cost for sending impressions is solely on the buyer.


Extraordinary Configurations

The Fearless Audio S4 has 4 balanced armatures with 3-way crossover tech and 2 sound tubes. It equips with 4 Micro Knowles Balanced Armature Drivers, Including 1 Sonion Dual Bass BA Driver, 1 Knowles Mid-Frequency BA Driver and 1 Knowles Treble BA Driver.

The sound of S4 begins with a strong bass neighborhood. Great impact With a full, thick mass coming from far away, but clean and giving a clear note The bass-like filling of the dynamic driver is also the same as listening to the vibrating flutter of the drum.

The middle sound goes out clearly. The weight of the drum is tight. Focusing on the dynamic that is fast-paced, not too smooth, polite, like the senior 
The treble will go out in a bright way, giving the mood to listen well, both fast and slow.

Overall, S4 has fun characters. But still gives a clear middle tone that is clear Easy to drive, not sue Suitable for pop, rock, market To easy listening music, easy to listen to as well

3D Printed Earphone

This model is 3D printed based on digitization molding which ensures greater accuracy of each headset. It has a unique technique on dealing with the pressure according to a different zone of the ear, creating a cost-effective class of custom headphones

High Sound Quality

The bass is rich and powerful. Low dive deep, full of elasticity and intensity without any slow feeling. It has a good balance of high and low frequency. The tone won’t be too bright or too dark. It’s smooth. The high-frequency extension is good, delicate and supple. Sound filed is strong enough to offer a sense of space. It can clearly deliver the vocal, instrument, and background

Detachable 2Pin Cable

Each earphone comes with a detachable 0.78mm 2 Pin cable. With this cable, it also ensures fully upgradability for more choice. You can change it for any other cables you prefer 

Customization Supported



Type: Custom 3D Professional Mixers Acoustic Enclosure 

Driver: Four Balanced Armature 

Technical Features: Four Micro-Iron Units, Three Frequency Bis Catheter. 

Sensitivity: 114dB/mW

Frequency Response Range:  20HZ-20KHZ

Impedance: 32Ω

Passive Noise Reduction: 26DB



We truly believe we have some of the best products in the world. If you don't have a positive experience for ANY reason, we will do WHATEVER it takes to make sure you are 100% satisfied with your purchase.

Buying items online can be a daunting task, so we want you to realize that there are absolutely ZERO risks in buying something and trying it out.  If you don't like it, no hard feelings we'll make it right. 

We have 24/7/365 Email Support. Please contact us at  if you need assistance. 

Estimated delivery time 5-10 days

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