The TRN MT4 offers an impressive dual-dynamic driver setup at a budget-friendly price combining a 10 mm beryllium-coated dynamic driver for deep, powerful bass with a 6 mm lightweight diaphragm driver to deliver clear mids and crisp treble. Its ergonomic shells (resin body with zinc-alloy face covers) ensure comfort and stability for everyday listening. With low impedance (22 Ω) and high sensitivity (115 dB), MT4 can be easily driven by smartphones or portable devices without needing a dedicated amp. Ideal for casual listeners, commuters, or anyone entering the audiophile/Hi-Fi IEM space offering a balanced, energetic sound profile straight out of the box.
Features
Dual dynamic-driver configuration (per ear) — 10 mm beryllium-coated dual-magnet driver + 6 mm lightweight diaphragm driver, delivering strong bass with clear mids and highs.
Low-impedance & high sensitivity — 22 Ω impedance, 115 dB sensitivity, making it easy to drive from smartphones, laptops or portable players.
Zinc-alloy + resin housing — durable zinc-alloy faceplate with resin shell, giving a premium look and a comfortable fit for long listening sessions.
Detachable cable with standard 2-pin connectors — comes with a 4-core silver-plated copper cable (3.5 mm plug, optionally with mic), easy to replace or upgrade.
Ergonomic, comfortable fit — shell shaped for good ergonomics; secure fit suitable for daily use, travel, or on-the-go listening.
Good value for money — strong performance relative to price; well-suited for budget buyers wanting a dual-driver IEM experience without breaking the bank.
Specification:
| Parameter | Value / Details |
|---|---|
| Driver Configuration | Dual dynamic drivers per ear — 10 mm beryllium-coated + 6 mm lightweight dynamic |
| Frequency Response | 20 Hz – 20 kHz |
| Impedance | 22 Ω |
| Sensitivity | 115 dB |
| Connector Type | 2-pin 0.78 mm detachable cable |
| Cable | 4-core silver-plated copper cable (3.5 mm termination) |
| Housing Material | Zinc-alloy faceplate + resin shell |
| Wear Style | In-ear (standard earbud fit) with ergonomic shell design |
| In-the-Box (typical) | MT4 earphones, detachable cable, silicone ear-tips (multiple sizes), possibly variant with inline microphone |











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