Fidue SIRIUS A91 4BA+1DD IEMs
SKU: 82058504468

Fidue SIRIUS A91 4BA+1DD IEMs

Sale price$404.55 Regular price$449.50
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  • CAN

Ships within 48 hours · Estimated delivery Jul 8 - Jul 13

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Description

Fidue SIRIUS A91 4BA+1DD IEMsFunction: For Mobile Phone Function: Monitor Headphone Function: Sport Function: For Routine Office Work Function: Common Headphone Function: for Video Game Function: Noise Cancelling Function: Wireless Headphone Function: PORTABLE Function: HiFi Headphone Function: For iPod Support APP: No Time to market: 2016 Active Noise Cancellation: No Connectors: 3. 5mm Support Apt x: No Resistance: 20 Support Memory Card: No Sensitivity: 113dB Vocalism

  • Function: For Mobile Phone
  • Function: Monitor Headphone
  • Function: Sport
  • Function: For Routine Office Work
  • Function: Common Headphone
  • Function: for Video Game
  • Function: Noise Cancelling
  • Function: Wireless Headphone
  • Function: PORTABLE
  • Function: HiFi Headphone
  • Function: For iPod
  • Support APP: No
  • Time to market: 2016
  • Active Noise-Cancellation: No
  • Connectors: 3.5mm
  • Support Apt-x: No
  • Resistance: 20Ω
  • Support Memory Card: No
  • Sensitivity: 113dB
  • Vocalism Principle: Hybrid technology
  • With Microphone: No
  • Frequency Response Range: 5-40000Hz
  • Control Button: No
  • Line Length: 1.25m
  • Style: In-Ear
  • Plug Type: Line Type
  • Is wireless: No
  • Brand Name: Fidue
  • Wireless Type: None
  • Volume Control: No
  • Waterproof: No
  • Model Number: SIRIUS
  • Communication: Wired
  • compatible platform: Windows Phone iOS ANDROID
  • sensitivity: 113dB/mW
  • impedance: 20.
  • model: SIRIUS
  • cable length: 1.3 meters
  • Use: Portable Media Player
  • Package: Yes
  • With Microphone: No





























 

 

---SpecificationsSplit---

5-way Hybrid Driving Technology

Customization-Class integration of Dynamic Driver 
 

4 Customization-Class Hi-End Balanced Armature Driver

The high-definition resolution power shows you lively instruments and voices.
 

1 Customized Bass Dynamic Driver

Surpass the conventional bass diving ability.
Make music full and extend, grand and magnificent.

 

Delicate 3D Acoustic Cavity Coil Design

Create suitable voice space for the voice attributes of every unit by means of delicate 3D analysis technics
 

Delicate Full-Frequency Fractional Frequency Tuning

Make 5 high-quality drivers with different attributes combine perfectly.
 

Lower Internal Resistance 8 Cores Silver Plating Balance Cable

Compared with most earphones with 4 cores or 3 cores wire rod, it doubles the wire rod. As great reduction of the internal resistance of wire rod, the signal becomes more clear and prompt.
 

Original 2.5mm Quadrupole Balanced Designed Plug

Protogenously equipped with 3.5mm balance convert cable and stereo universal cable
 

Tougher All-Metal Shell

High precise CNC incision and rigorous assembly technique make Sirius utterly natural.
 

The Fourth-Generation MMCX Locking Design

The special made stainless steel structure makes the connection of MMCX more stable and durable.
 

Excellent Wearing Design to Be More Supra-aural

More than a hundred of experiments and adjustments only for better fit auricle and excellently isolate noise.
 

More Stable Over-Ear-Style Sport Wearing

No matter in stage, train, gym or street, you can absorb in your music.
 

Music Flame, Completely Display

Sirius, its every design is deliberate, and every part is carefully considered. Just because every detail will affect the excellent performance of sound quality and wearing. The pursuit of delicacy, the painstaking research and consideration about 700 days make the right product.

Specification:

 

Model: FIDUE SIRIUS
Color: Dark Grey
Driving Units: 4 Balanced Armature driver & 1 dynamic driver
Frequency Response: 4-45000 Hz
Impedance: 20Ω
Sensitivity: 113dB
Input Power: 30mW
Total Harmonic Distortion: <1%
Plug: Protogenous 2.5mm balance stereo rhodium plating plug
Cable Length: 1.3m 8cores silver plating OFC audiophile cable
Converting Cable: 2.5 to 3.5mm quadrupole balance converting plug; 2.5 to 3.5 mm universal stereo converting plug
Applicable products: iphone, Samsung, HTC, Xiao mi, Meizu(all models), Ipad (Tablet&PC). It applies to 99% market electronic products

 

Package list :
 

Fidue Sirius A91 earphone
4 x Monolayer silicone case
1 pair Comply T500 memory sponge cover
1 x Holder belt
1 x Disassemble kit
1 x Clean kit
1 x Tailor-made aluminum alloy housing case
1 x Aviation stereo plug
1 x 3.5 to 6.3 stereo converter

 

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 82058504468

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Cheila
New York, US
★★★★★ 5
Very stylish💜💜
Size: 6, Color: Light Blue, Size: 6, Color: Light Blue
This little suit for boys is very stylish. I bought it for my grandson for a wedding occasion and it looked very nice. The fabric is not too thick so for the summer wedding it was great. I pick the blue color and it looked fantastic!
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Reviewed in the United States on March 16, 2026
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Teresa Stevens
Fort Morgan, US
★★★★★ 5
Loved it
Fit perfectly
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Reviewed in the United States on December 9, 2025
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Anthony Honny
Whiting, US
★★★★★ 4
Boys linen suit
Size: 10, Color: Light Blue
Looks great. Just wish it included a shirt
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Reviewed in the United States on March 21, 2026
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Denise
Dallas, US
★★★★★ 5
Great product
Size: 10, Color: Light Champagne, Size: 10, Color: Light Champagne
Not bring the tshirts but fit really good
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Reviewed in the United States on August 10, 2025
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Tania S
Fort Morgan, US
★★★★★ 5
Very comfortable
Size: 14, Color: Light Green
I received so many compliments on my son’s outfit for graduation. 
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Reviewed in the United States on June 26, 2025

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