Skip to product information
1 of 7

TRN

TRN ST7 2DD+5BA HYBRID EARPHONES HIFI In-ear earphone

TRN ST7 2DD+5BA HYBRID EARPHONES HIFI In-ear earphone

Regular price $32.99 USD
Regular price $32.99 USD Sale price $32.99 USD
Save 0% Sold out
Shipping calculated at checkout.
Color

Shipping to 

Estimated delivery on 

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

TRN - ST7 Hybrid Earphones

Features

  • 2DD+5BA Hybrid Acoustic Architecture: Coaxial dual moving coil and high-frequency balanced armature combination.
  • Ergonomic Design: Comfortable wearing experience with professional HiFi tuning.
  • Detailed Sound Performance: Enhanced resolution for a richer and more complete sound experience.

Design

The TRN-ST7 employs a 10mm + 6mm coaxial dual-moving coil design. The 10mm LCP low-frequency diaphragm provides a deeper low-frequency response, while the 6mm composite diaphragm ensures the clarity and high fidelity of mid-frequency content such as vocals. The five balanced armature units handle high frequencies and mid-high frequencies, capturing richer details and enhancing the overall sound performance.

Sound Quality

  • Transparent Resolution: Custom high-frequency balanced armature unit combination for exceptional high-frequency detail.
  • Smooth and Natural Multi-Driver Tuning: High-precision three-way crossover design ensures balanced sound performance.
  • High-Fidelity Sound: Delicate, full, and round sound with enhanced full-frequency resolution.

Comfort

The housing of the ST7 is designed based on thousands of ear imprints collected over the years, ensuring a custom-like fit. The ergonomic ear wrap design enhances comfort and noise isolation, allowing you to enjoy your music in any setting without discomfort.

 

window.adminAccountId=200349805;

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