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Black in-ear monitors with metal shells and detachable 3.5 mm cable

Moondrop CHU II 10 mm dynamic IEM black 3.5 mm 18 ohm 119 dB 3.87 oz

SKU CH-W3W6-C57E4

In-ear headphones with a 10 mm dynamic driver, 18 ohm impedance, 119 dB sensitivity and a replaceable brass nozzle

  • TypeIn-Ear
  • ColorBlack
  • Driver Unit10 millimeters
  • THDIn Ear
  • Input Impedance18 ohms
  • Signal to Noise Ratio(SNR)119 decibels
  • 10 mm dynamic driver delivers detailed sound across the frequency range
  • 18 ohm impedance allows easy pairing with phones and portable players
  • 119 dB sensitivity provides loud, clear output from low-power sources
  • Replaceable brass nozzle filters let you tune the signature without tools
  • Aluminum-magnesium alloy dome diaphragm keeps distortion below 0.05 %

Aluminium-magnesium dome driver IEM

The CHU II uses a 10 mm dynamic driver with an aluminium-magnesium alloy dome and dual-polymer suspension. The design targets ultra-low nonlinear distortion below 0.05 percent across the full frequency range for natural timbre and fine detail retrieval.

3.5 mm wired connection limits

A fixed 3.5 mm plug delivers an analogue signal directly from the source device without wireless compression or battery dependence. The 18 ohm load and 119 dB sensitivity allow high volume from portable players, though output impedance of the source can affect frequency response.

Replaces single-filter budget IEMs

Swappable brass acoustic nozzles let the user change tuning filters instead of buying multiple pairs. The alloy casting cavity adds structural rigidity over plastic shells, making the upgrade worthwhile for listeners who want adjustable sound signatures without carrying separate in-ear monitors.

Highlights

  • 10 mm dynamic driver delivers detailed sound across the frequency range
  • 18 ohm impedance allows easy pairing with phones and portable players
  • 119 dB sensitivity provides loud, clear output from low-power sources
  • Replaceable brass nozzle filters let you tune the signature without tools
  • Aluminum-magnesium alloy dome diaphragm keeps distortion below 0.05 %

Specifications

BrandMoondrop
Series2
ModelCHU II, MOONDROP-CHU-II
Part NumberMOONDROP-CHU-II
TypeIn-Ear
ColorBlack
Driver Unit10 millimeters
THDIn Ear
Input Impedance18 ohms
Signal to Noise Ratio(SNR)119 decibels
Sensitivity119 decibels
Connector3.5mm
Ear CouplingSingle Ear
Cord LengthProtective Case
Weight3.87 ounces
Noise Cancellingnone
Charge Time15 hours
Microphone Impedance18 ohm
Microphone Signal to Noise Ratio(SNR)119 decibels
Microphone Sensitivity119 decibels
Featuresnone, Detachable, touch, Wired, In Ear, dynamic_driver, 18 ohm, CHU II * 1
Package ContentsCHU II * 1, Cable, Protective Case, Eartip

Questions about this item

How do I decide between the 10 mm driver and other IEM driver sizes?

The 10 mm dynamic driver uses an aluminum-magnesium alloy dome diaphragm with a dual-polymer suspension, which extends treble bandwidth and tightens bass while keeping distortion below 0.05 %.

What does the 119 dB sensitivity mean when I plug these into my phone?

At 119 dB sensitivity and 18 ohm impedance, the CHU II reaches loud volumes from a standard 3.5 mm headphone jack without needing a separate amplifier.

What does the 3.5 mm connector cap in real use?

The 3.5 mm plug limits you to analog wired sources; it cannot carry a digital signal or inline remote power, so volume and playback controls depend on the host device.

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