keephifi Mermaid in Ear Monitor Wired Earbuds 10mm Dynamic Driver in-Ear HiFi Earphone with 5-axis CNC Aluminum Alloy Cavity and Patented Acoustic Structure (3.5MM)

4.8 (26 items)

Limited Time Sale

Until the end

New $59.00 (tax included) Number of stocks: 1

Used $23.60 (tax included) New Arrivals and Restocks Number in stock: 1

$35.40 cheaper than the new price!!

Free shipping for purchases over $99 ( Details )
Free cash-on-delivery fees for purchases over $99

Other shops (12) $99 ~

See all stores

Please note that the sales price and tax displayed may differ between online and in-store. Also, the product may be out of stock in-store.

New $59.00

Product details

Management number	209131268	Release Date	2026/03/29	List Price	$23.60	Model Number	209131268
Category	Electronics Headphones, Earbuds & Accessories Headphones & Earbuds Earbud Headphones

【10MM dynamic driver and patented acoustic structure 】Mermaid is a 10mm high-strength magnetic plated beryllium diaphragm dynamic driver in-ear HIFI earphone with a balanced and neutral tonality.
"【5-axis CNC machined 7075 aerospace aluminum alloy cavity】To precisely meet the accuracy and craftsmanship requirements of the shell, we spared no expense in using expensive 5-axis CNC machines for Mermaid in ear monitor. In terms of polishing, we strictly required that the surface cover and bottom shell merge seamlessly through polishing, achieving high consistency of every joint. This significantly improves the production cost. The results did not disappoint anyone. With the appropriate ear tips, Mermaid wired earbuds are excellent in comfortable fit, providing a seamless fit against the ear and maintaining comfort even when worn for successive hours."
"【Litz structure 7*7 four-strand copper plated silver 】In line with the acoustic characteristics of Mermaid in ear hifi headset, we have paired it with a Litz structure 7x7 four-strand copper plated silver cable that offers the best balance between sound and tactile feel at this level. Each strand of wire comprises 49 inner cores of 0.06mm diameter, which contributes to the overall density of the sound presentation. The cable is available in both single-end 3.5mm and balanced 4.4mm versions, allowing users to choose according to their preferences."
"【Patented acoustic structure 】We have designed an exclusive patented acoustic structure (Patent: 2023201865817) for the Mermaid in ear headphones. This structure utilizes tuned filters and a phase-inverted design to guide certain sound waves generated by the back chamber of the driver unit to the sound outlet, effectively canceling out some harsh high frequencies, while enhancing the dynamic presentation of mid-to-low frequencies. This results in a cleaner sound background, more vivid and lifelike vocal performance, and enhanced bass presence, regardless of the sound volume level."
"【Replaceable Sound Tube Tuning】We have designed a replaceable sound tube structure for the Mermaid in ear monitor headphone, and it comes with two sets of sound tubes (black and silver) for users to interchange at their discretion. The black sound tube enhances the presentation of vocals and instruments, while the silver sound tube offers improved balance and separation. Please refer to the graph below for detailed frequency response curves."

Color	Silver Coral
Brand Name	keephifi
Model Name	R2 Mermaid
Item Weight	0.26 Kilograms
Control Type	Media Control
Manufacturer	keephifi
Model Number	R2-6927
BuiltIn Media	Cable
Noise Control	Sound Isolation
Cable Features	Retractable
Control Method	Remote
Earpiece Shape	In Ear
Headphone Jack	3.5 mm Jack
Frequency Range	20Hz-20KHz
Enclosure Material	Aluminum
Additional Features	Lightweight
Wireless Technology	WIRED
Warranty Description	1 year warranty
Age Range Description	Adult
Connectivity Technology	Wired
Headphones Ear Placement	In Ear
Specific Uses For Product	Professional Audio Monitoring
Headphone Folding Features	In Ear