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T4 4-Drivers In-ear Monitor (Custom)

T4 4-Drivers In-ear Monitor (Custom)

3 total reviews

Regular price $299.00
Regular price $374.00 Sale price $299.00
Sale Sold out
Shipping calculated at checkout.


1.  Choose the CUSTOM IEM you are interested in and Place Order 

2.  Choose the CIEM Design (Shell, Faceplate, Custom Artwork...)

3.  Prepare Ear Impression (Physical Ear impression/ 3D Scan Ear Impression)

4.  Ship us the Physical Ear Impression or Send us 3D Ear impression .stl file

5.  Wait for 2-4 weeks Until Your Custom IEM is Ready, We Will Share the CIEM Photos before arranging the shipping to you.

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T4 4-Drivers IEM Design Inspirations

  • Clear blue skies with fluffy floating white clouds over the blue Oceans
  • Sound Features: Clear, Relax, Soft


  • T4 is the latest T-series new arrival 4-Drivers/3-Ways crossover tuned professional in-ear monitor, a fully Bass-Vocal-Treble improved IEM than the top-popular T2.
  • T4 has a more balanced natural sound and offers a softer presentation of a mix. Beautiful upper-mid imaging, realistically presenting instruments like guitars and piano as well as breathing life into saturated mid-bass mixes. Using the tuning switch and different ear-tips, T4 allows the listener to further customize the sound based on the needs of the music


  • 4-Balanced Armature Drivers/ 3-Ways Integrated Crossover
  • Tuning Switch (1IEM 4Sounds: Bass+/Soundstge+/Vocal+/Balance)
  • Harman IEM Target Curve referred Tuning, Smooth Coherence from Bass to Treble, Well-detailed and Top-Clean Instrumental Definition
  • 20Hz-22KHz
  • Ergonomic Design, Small Ear friendly

Tech Specifications

Drivers 4x BAs
Tuning 3-Ways Integrated Crossover(Passive)
Freq Response 20Hzz-22Khz
Sensitivity 115db@1mW
 Impedance 19Ω±10%
Distortion 0.5%±0.1%
Noise Isolation -26db


1Year(IEM only)| CIEM 30days perfect-fit Guarantee

What's in the Box

  • T4 Custom In-ear Monitor
  • 4Strands SPC 3In1Modular Cable(4.4/3.5/2.5mm)
  • Hisenior Carry Case
  • Clean Tool
  • Cable Clip
  • Switch Adjust Pin

Free Shipping

  • Default: Yanwen Standard (15-20Days)| E-packet (20-45Days) 
  • Faster: Yanwen VIP(10-15Days)| DHL-Fedex-EMS (9-12Days) Optional

T4 CIEM + WhiteWhale 

  • Save 26$
  • Improve T4's Vocal/Instrumental Clarity, Definition/Highs Extension up to 20%
View full details

    3D .STL Support




    1IEM/ 4Sounds


    Yanwen (10-20Days)

Support 3D Ear Impression

  • STL 3D Scan File, Directly Made in Local with the Help from Audiologist
  • Faster: Lead time 2-4Weeks
  • Save Money: No Need Cost Expensive Freight to Ship the Physical Ear Impression

Tuning Switch

  • 1 CIEM, 4 Variant Sounds
  • Balance/Bass+/Vocal+/Soundstage+ Switchable
  • Flexible and Easy Satisfy Musicians' (Drummer,Guitarist,Singer...) Stage Monitor Demands from 1x Hybrid IEM
  • Using the Switch, Okavango allows the User to Further Customize the Sound Based on the Needs of the Music

Custom Artworks

  • Custom Logo and Custom Photo Designs are Available for Hisenior CIEMs Now
  • Personalized Designs Exclusive for You

95% Shell Faceplate are Free

  • Hisenior Audio has been committed to designing and making the most affordable professional in-ear monitors for you
  • Pure Color Resin/ Carbon Fiber/ Abalone/ Pearl/ Stablized Wood.... Available
  • My intereted design not listed, welcome contact us and share the design photos you like
Find More Free Designs

Customer Reviews

Based on 3 reviews
René Banjac
The Trainer T4 custom

The sound a quality of the T4 custom Hisenior made for me is gorgeous. Additionally the service and support by Mr. Gareth Chan ist outstanding!

浩史 藤田
My first custom IEM

I had my first custom IEM made, and after using it for a few hours, I am a little disappointed that the feeling of wearing it depends on your physical condition, so if your ears become swollen, you may not be able to use it.
However, I understand that this cannot be helped because I understand that this is a product with such specifications.
As for the latter, I feel that custom IEMs are great because you can hear the sound more delicately than with universals, and you can create the faceplate design to your liking.

pao c.
T4 Custom

My Hisenior T4 Custom IEM is inspired by ITZY Ryujin's IEM design.

Design and Build Quality:
The build quality is exceptional, delivering a sturdy and reliable feel.

Sound Quality:
The sound quality is remarkably close to my monitor speakers, ensuring an excellent audio experience.

Noise Isolation:
The noise isolation is impressive, as it effectively blocks out external sounds, allowing me to focus on my guitar and band monitoring.

Comfort and Fit:
Wearing these custom IEMs is incredibly comfortable; they feel almost weightless.

I opted for a green color and had our band logo and Hisenior logo incorporated into the design.

Price and Value:
The Hisenior T4 Custom IEM offers excellent value for its price point.

In conclusion, the Hisenior T4 Custom IEM is an impressive choice for musicians and audiophiles. Its outstanding sound quality, noise isolation, and comfortable fit make it a worthwhile investment. The customization options allow for a personal touch, and it represents great value for its price. Highly recommended!

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