Home Planar Drive TRN Shell 4DD Planar Hybrid In-Ear Headphones
Skip to product information
1 of 7

TRN

TRN Shell 4DD Planar Hybrid In-Ear Headphones

TRN Shell 4DD Planar Hybrid In-Ear Headphones

Regular price $57.83 USD
Regular price $61.99 USD Sale price $57.83 USD
Save 6% Sold out
Shipping calculated at checkout.
Color

Shipping to 

Estimated delivery on 

Canada, Mexico, Romania, United States: import duty of 10 USD

TRN Shell 4DD Planar Hybrid In-Ear Headphones

Key Features:

  • Hybrid Driver Technology: Triple dynamic drivers (10.5mm, 8mm, 6mm) plus a 6mm planar unit for full-frequency immersion.
  • Interchangeable Nozzles: Three gold-plated brass filters with a quick-release design to customize sound profiles.
  • Silver-Plated Cable: Four-strand hybrid cable enhances sound fullness and reduces distortion with 3.5mm and 4.4mm connectors.
  • Ergonomic Ear Hook Design: In-ear style with ear hooks ensures comfort and a secure fit for extended listening.
  • Rich Accessory Kit: Includes 13 pairs of ear tips, a carrying case, and interchangeable nozzles for all-round protection and versatility.
  • Low Impedance, High Sensitivity: 16Ω impedance and 110dB sensitivity for easy driving and dynamic sound.

Technology and Innovations:

The TRN Shell redefines in-ear audio with its advanced 4DD planar hybrid architecture, featuring three dynamic drivers (10.5mm, 8mm, 6mm) and a 6mm planar diaphragm unit. The 10.5mm driver delivers powerful, impactful bass, the 8mm unit excels in vocal clarity and mid-high frequencies, and dual 6mm drivers—one dynamic, one planar—handle high and ultra-high frequencies with precision and airiness. This synergy ensures a balanced, natural soundstage with enhanced dynamics and layering. The interchangeable nozzle design, with three gold-plated brass filters, allows users to tweak resonance and emphasize different frequency bands. Paired with a four-strand silver-plated oxygen-free copper cable, the Shell minimizes signal loss and boosts high-frequency response, delivering an immersive, detailed listening experience.

Technical Specifications:

Parameter Details
Brand TRN
Model SHELL
Transducer Type Hybrid Triple Dynamic Driver + Planar Diaphragm
Drivers 10.5mm DD (Low), 8mm DD (Mid), 6mm DD (High), 6mm Planar (Ultra-High)
Jack Type 3.5mm / 4.4mm
Connector Type 2-Pin Detachable
Impedance 16Ω
Sensitivity 110dB
Frequency Response 20Hz - 20kHz
Cable Length 1.2m ± 3cm
Weight (Headphone + Cable) ~2.6g + 9.3g
Color Silver
Wear Style Ear Hook

Package Includes:

  • 1x TRN Shell 4DD Planar Hybrid Headphones
  • 1x Four-Strand Silver-Plated Hybrid Cable (3.5mm & 4.4mm Connectors)
  • 1x Earphone Carrying Case
  • 3x Interchangeable Gold-Plated Brass Filter Nozzles
  • 13x Ear Tips (Liquid Transparent: S, M, L; Silicone: S, M, L; White Silicone: S, M, L; T Tips: S, M, L; Memory Foam: M)

Shipping & Returns

  • Free Standard full searchable Shipping
  • DDP(Delivered Duty Paid) Services, No payment on receiption
  • Free 7-Day Return Policy!

⚠️ Important Notice: EU Customs Reform Effective 1 July 2026

A new tariff system will take effect across all 27 EU member states starting 1 July 2026. The EU is abolishing the duty exemption for low-value parcels — all goods entering the EU will now be subject to customs duties, including a fixed duty of €3 per HS tariff code category for IOSS-declared goods under €150.

A handling surcharge of USD $5 has been applied to all standard shipments to EU countries on orders under $500. Orders over $500 qualify for free expedited shipping.


Shipping Fees & Couriers

We collaborate with the following courier companies:

  • Standard Shipping: Yunexpress, 4PX, NinjaVan
  • Special Country Channels: India – Yitong Express | United Kingdom – Royal Mail | Japan – Sagawa Global Transportation
  • Express Shipping (orders over $500 ship free): DHL Express, FedEx, UPS, SF Express

In the event that a shipment is refused, undeliverable, or returned to sender, HiFiCat will process a refund to the original payment method. If a customer requests reshipment, a reshipment fee will apply. A restocking fee of up to 20% may also apply.


Shipping Rates & Estimated Delivery Times

1. France, Germany, United Kingdom, Italy, Spain, Poland

All taxes and duties are prepaid (DDP). 5–10 working days. Free standard shipping.

Tracking examples:

2. EU 27 Countries (Standard Shipping)

Austria, Belgium, Bulgaria, Croatia, Czech Republic, Denmark, Estonia, Finland, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Cyprus

All taxes and duties are prepaid (DDP). 10–15 working days.
💰 Shipping cost: $5.00 USD (orders $0–$500) | Free (orders $500+, via DHL Express)

Tracking examples:

3. Other European Countries (Free Standard Shipping)

Norway, Switzerland, Ukraine, Armenia, North Macedonia, Moldova, Monaco, San Marino, Vatican City, Serbia, Albania, Kosovo, Montenegro, Bosnia & Herzegovina, Belarus, Georgia, Andorra, Guernsey, Jersey, Faroe Islands, Svalbard & Jan Mayen, Guadeloupe, Réunion, Gibraltar, Isle of Man, Mayotte, Iceland, Liechtenstein, Turkey

All taxes and duties are prepaid (DDP). 10–15 working days. Free standard shipping.

4. Americas

5. Oceania

6. Asia


Track Your Order

Main tracking portal: https://t.17track.net/


Contact Us

📧 Email: support@thehificat.com
📞 Tel: +8619270016096

View full details