Knowles balanced armature with composite dynamic driver in ear earphone.
One Year Warranty & Free Shipping Available
Shipping & Warranty
TRI I4 1BA + 1DD
High-end Precision CNC Finishing High-end Aluminum Alloy Shell
Full-structure use aluminium alloy and high precision CNC finishing. Overall anodizing color handle and laser engraving logo.
Special Customized Knowles, Balanced Armature Units
Knowles balanced armature driver have very good resolution, also can covering a wider frequency range and improving the sound resolution. 2-electronic frequency division technology makes sound cohesion more smoother and distinct levels.
10mm Composite Biological Diaphragm Alloy Dynamic Units
The dynamic driver made of biology cotton material, AI-Mg alloy with spherical top gold plating technology. It has good transient state. Low frequency have full fidelity, realistic and elastic low distortion.
2 Crossover Circuit Design
The Frequency Response Diagram of TRI I4
Common International Design of Phosphor Copper Gold Plated MMCX Connector
The MMCX interface can change earphone cable according to your preferences, you can also try different styles of sounds.
1. Product Name: TRI I4
2. Brand: TRI
3. Model: I4
4. Earphone type: In Ear
5. Impedance: 12Ω±20%
6. Earphone sensitivity: 103±3db
7. Frequency response range: 20Hz-40KHz
8. Plug Type: 3.5mm L Plug
9. Cable Length: 1.2m±5cm
10.Color: Blue and Silver
11.Whether with cable: Yes
12.Earphone connector: MMCX connector
13.Whether with mic: No mic
14.Whether can use replacement cable: Yes
15.Driver unit: Balanced Armature
- Free worldwide Standard Shipping on orders under US$59
- Free worldwide Expedited Shipping on orders over US$59, US$7 for orders under US$59
- Free worldwide Express Shipping on orders over US$249, US$20 for orders under US$249
You can see more details in our Shipping Policy
One Year Warranty
KEEPHIFI warrants that your KEEPHIFI device and KEEPHIFI accessories shall, as of the date of delivery, be free from material defects for a period of one (1) year. (The date of delivery is considered the date that our delivery service has recorded delivering your KEEPHIFI product as per delivery tracking, not any other date.). This warranty extends only to personal use & does not extend to any product that has been used for commercial use, rental use, or use that is not intended. To be eligible for warranty service, you must contact email@example.com under warranty, within the warranty period.
You can see more details in our Refund Policy