TRN

TRN Medusa In-Ear Monitors — 12mm DLC Dynamic Driver, 3.5mm/4.4mm Plugs

Genuine & Brand-New
Free Shipping · Ships from China
1-Year Warranty
45-Day Returns

$49.99 USD

Shipping calculated at checkout.

Version Without Mic With Mic

The TRN Medusa is a wired in-ear monitor with a 12mm second-generation DLC (diamond-like carbon) diaphragm dynamic driver in a three-cavity, dual-magnetic-circuit unit, set in a translucent resin shell, with a detachable 2-pin cable and swappable 3.5mm and 4.4mm plugs. It suits listeners who want a single-driver IEM for phone dongles or balanced 4.4mm players, with or without an inline mic.

Who the TRN Medusa is for

Single-driver listening: One 12mm dynamic driver with a second-generation DLC diaphragm covers the full 20Hz–20kHz range TRN lists.
Balanced sources: Swappable 3.5mm and 4.4mm plugs let one cable serve single-ended phone dongles and balanced 4.4mm players.
Design-minded buyers: The translucent resin shell shows the Medusa motif and the earphone's inner structure.
Calls and voice chat: The With Mic version adds an inline mic on the cable.
Comfortable fit: Over-ear cable routing and seven pairs of tips (T-type, balanced-type and memory foam) help you find a seal.
Skip it if: You want adjustable tuning or wireless listening; the Medusa has no tuning nozzles or switches and is a wired, passive IEM.

TRN Medusa key specs

Driver: 12mm dynamic, second-generation DLC (diamond-like carbon) diaphragm
Driver structure: Three-cavity, dual magnetic circuit
Impedance: 30Ω
Sensitivity: 108dB
Frequency response: 20Hz–20kHz
Shell: Translucent resin with a Medusa motif; over-ear fit
Cable: 1.2m, 4-strand copper and silver-plated copper mix, 89-core Litz per signal path, detachable 2-pin (2Pin-S)
Plugs: Swappable 3.5mm and 4.4mm
Versions: Without Mic, or With Mic (inline mic on the cable)
In the box: Earphones, cable, 3.5mm and 4.4mm plugs, 7 pairs of ear tips, aluminum storage case

Genuine TRN stock. Free shipping on every order, 45-day returns.

TRN Medusa vs similar options

vs TANCHJIM OLA: Uses a 10mm graphene-diaphragm driver and adds water-resistant construction with a bass-focused tune; pick the Medusa for its 12mm DLC driver, translucent resin shell and swappable 3.5mm/4.4mm plugs.
vs SIMGOT EW200: Adds an all-metal shell but ships without a case; pick the Medusa for its larger 12mm DLC driver, a 4.4mm balanced plug and an aluminum storage case.

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Specifications

Driver	12mm dynamic, second-generation DLC (diamond-like carbon) diaphragm, three-cavity dual magnetic circuit
Impedance	30Ω
Sensitivity	108dB
Frequency response	20Hz–20kHz
Connector	Detachable 2-pin (2Pin-S); swappable 3.5mm and 4.4mm plugs
Weight	5.1g per earphone + 10g cable (TRN figures)

What's in the box

TRN Medusa earphones (pair)
1.2m detachable 2-pin cable (inline mic on the With Mic version)
Swappable 3.5mm and 4.4mm plugs
7 pairs of ear tips: T-type S/M/L, balanced-type S/M/L, memory foam M
Aluminum storage case

Good to know

Buying from TonePier

Is this unit genuine?

Yes. Every unit we sell is genuine and brand-new, shipped in its original packaging, and backed by our 1-year TonePier warranty and 45-day returns.

Where does my order ship from, and how long does it take?

Every order ships from our warehouse in China, with full tracking, and most orders ship within 3 business days. Shipping is free on every order; most US orders arrive within 7–15 business days and most orders to other countries within 7–20 business days — see our shipping policy for details.

What if it isn't for me?

You get 45 days to decide. Keep the packaging, keep it in like-new condition, and send it back for a refund. Ear tips unsealed for hygiene reasons are fine — we expect you to actually listen.

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