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TRN ST1 1DD+1BA Hybrid In-Ear Earphone


Out of stock


Out of stock

TRN ST1 Earphone Features:

  • 1BA+1DD Hybrid Driver: TRN ST1 adopts custom 30095 balanced armatures and a 10mm dynamic driver. With this configuration, it can greatly improve high-frequency extension and clarity to a degree that will leave you amazed over the richness of instruments and natural details emerging from your music collection. You will enjoy impactful bass rumble and delicate treble. It gives the music performance more substance and a very natural tone.
  • Electronic Crossover and Frequency Division Chamber: Carefully tuned 2-way crossover technology and acoustic chamber allow narrower pass-band of drivers make it possible to optimize and tailor them to the desired sonic capabilities. When the resonances are minimized, your psychoacoustic capabilities no longer have to deal with unwanted resonances. You can enjoy the reproduced music to a whole new level.
  • Aesthetic Crafting and Alloy Faceplate: This model utilizes advanced PVD protective film-coating that is tough, resists corrosion, impact, and abrasion. The stunning musical performance of ST1 deserves an equally striking appearance. Each one is hand-brushed to a satin finish, ensuing a luxurious pearly-white shine and plush feeling that is both artistically and aesthetically pleasing.
  • Airflow Regulating Pressure Vent and New Type-C Connector: The airflow control helps equalize internal chamber pressure via the vent on the faceplate. A newly developed type-C connector can greatly protect the contact pins from accidental breakage to ensure longevity and better wearing stability.
  • Ergonomic Design for Ultimate Wearing Experience: The ST1 has a specially shaped front housing which is made in accordance with the contour of a human auricle for utmost stability, comfort, and sound isolation.


  • Driver unit: 1BA+1DD hybrid driver unit (Super-sized 10mm Diaphragm + Customed BA)
  • Impedance: 18Ω
  • Earphone sensitivity: 106dB/mW
  • Frequency range: 10-40000Hz
  • Plug Type: 3.5mm Straight Plug
  • Cable Length: 1.20m
  • Earphone interface: Improved 0.75mm Type-C connector
  • Whether can replacement cable: Yes

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See the following table to take a look on the shipping and payment methods:

Shipping Method
Payment Method
Delivery Charge
Delivery Time
Inside Dhaka
Home Delivery
Advance Payment
BDT 70
Max 2 Days
Cash on Delivery
BDT 70
Max 2 Days
Outside Dhaka
Home Delivery/Collect From Sundarban Courier Branches
Advance Payment
BDT 100
Max 2-5 Days
Cash on Delivery
BDT 130
Max 2-5 Days


Special Notes

  • For the Cash on Delivery payment method Outside Dhaka, customer have to pay 200 TK Advance as booking money, which is non-refundable. This amount will be deducted from the total bill amount. (i.e. Total bill of an order is 1000 TK customer will pay 200 TK as advance and the rest 800 TK while receiving the product).

Warranty Policy

Official Warranty (Provided by brands):

  1. This warranty is provided by the brands and usually ranges from
  2. Inform us if your product is under warranty period. (Warranty period will be mentioned in the package of the product.)
  3. You must keep the package and it will be necessary while claiming.
  4. In some cases you might visit or contact with the official service center of the respective brand.

Unofficial Warranty (Provided by Gear Buzz BD Limited):

  1. All of our products (except the products with official warranty) have a common 10 days warranty.
  2. Inform us if your product is under warranty period.
  3. You must keep the package and it will be necessary while claiming.

Return/Replacement Policy

Conditions for Return:

  1. Gear Buzz BD provides 3 days of easy returns for every product under certain conditions. Products that are damaged, defective, or not as described on the website can be returned within 3 days.
  2. If a wrong product is sent or the product is not the same as described on our website.
    Under this condition, the product must be returned unused, in the original packaging, and with all seals & tags intact.
  3. If the product is damaged, defective, or counterfeit.
  4. The product must be returned in its original packaging. All accessories, user manuals, warranty cards, and our invoice must also be returned.

Note that, change of mind is not applicable after receiving the product. 


For details and to know the refund procedure please visit our Return, Warranty & Refund Policy page.