Nano Titanium-Ion Composite Diaphragm

The EI-01 is fitted with a 10mm nano titanium-ion composite diaphragm, high-temperature compression molded from a compound of natural fiber pulp and nano-scale titanium material. The composite construction achieves a balance of lightness and rigidity that enhances transient response and analytical capability while reducing harmonic distortion. Paired with a high-performance N52 neodymium magnet, the driver system maintains dynamic control and detail retrieval throughout the full 20Hz–20kHz frequency range.

3-Color Ice Crack Scale Faceplate

The EI-01 faceplate is crafted from premium acrylic blended with natural mica powder and high-refractive glitter powder, formed through a special composite molding process. The finish presents a symbiotic dual texture of naturally translucent ice crack patterns and finely lustrous shell scales, giving each pair a distinctive, premium visual character. Available in three colorways, the faceplate combines artistic expression with the durability expected of a daily-use HiFi accessory.

0.78mm 2-Pin Detachable Connector Design

The EI-01 adopts a 0.78mm 2-Pin detachable connector, allowing the cable to be swapped or upgraded for different use cases. The cable core uses high-purity oxygen-free copper (OFC) conductors in a four-strand precision twisted and braided structure, effectively suppressing signal interference for stable audio transmission. A durable PVC outer jacket offers strong wear resistance and tensile toughness, ensuring reliable performance during daily use, gaming, live streaming and monitoring.

Two Configurations, Two Choices

The EI-01 is available with a 3.5mm or USB-C connector to suit different devices and scenarios. The 3.5mm version uses a four-strand 32×0.05mm OFC cable for pure analog transmission, well suited to music playback, live streaming and monitoring. The USB-C version features a 12×0.08mm OFC cable with a built-in KT02H20 decoding chip, supporting digital lossless audio at up to 384kHz/32-bit with UAC2.0 compatibility for plug-and-play operation. The USB-C cable also integrates an HD microphone for calls, voice recording and gaming communication.

Skin-Friendly Resin Shell, Ergonomic Comfort

The EI-01 shell is made from skin-friendly resin, chosen for its lightweight properties, high rigidity, and resistance to heat and moisture. The ergonomic in-ear shape conforms naturally to the ear canal, providing a secure and comfortable fit during extended wear. Its compact, ultra-light construction makes it equally suitable for home listening, commuting and long gaming or streaming sessions.

Technical Details

Model
EI-01
Driver
10mm Nano Titanium-Ion Diaphragm Dynamic Driver
Sensitivity
109dB/mW
Frequency Response
20Hz–20kHz
Plug Type
3.5mm / USB-C
Cable Interface
0.78mm 2-Pin
Cable Material
Four-strand OFC wire core
Impedance
32Ω
Inside the Box
  • EUIU EI-01 In-Ear Monitor ×1
  • Cable ×1
  • User Manual ×1

30-Day Return Policy

You may return any non-customized product that is still factory sealed, within 30 days upon receiving it. For items that are damaged, incorrect, or faulty upon delivery, Linsoul will assess the issue and provide a solution accordingly.

1 Year Warranty

The EUIU EI-01 Comes with a 1 year warranty on the In-Ear Monitors and 3 month warranty on the cable.

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