Argent  -KALEIDOSCOPE- ship in October
Argent  -KALEIDOSCOPE- ship in October
Argent  -KALEIDOSCOPE- ship in October
Argent  -KALEIDOSCOPE- ship in October
Argent  -KALEIDOSCOPE- ship in October
Argent  -KALEIDOSCOPE- ship in October
Argent  -KALEIDOSCOPE- ship in October
Argent  -KALEIDOSCOPE- ship in October
Argent  -KALEIDOSCOPE- ship in October
Argent  -KALEIDOSCOPE- ship in October
Argent  -KALEIDOSCOPE- ship in October
Argent  -KALEIDOSCOPE- ship in October

長井 未来

Argent -KALEIDOSCOPE- ship in October

¥120,000  (tax included) Sale Save
Britannia silver mature items


Based on traditional metal engraving techniques, Miku Nagai has sharp expressions and reliable techniques.
The elegant shine of Britannia silver that comfortably colors your ears is a mature item with sophisticated materials and design.

Argent's simple and lean shape and silver simple and minimal design can be used regardless of gender and age, and in any situation.

There are many types and combinations of metal materials, even though they are all metals, and they show different expressions depending on the processing technique. This work is produced using hammering and engraving techniques to make the most of the texture of silver. Since the hammering technique has a hollow structure, it is made of silver, but it is light and functional.



Earphone body: W22.0 × D25.0 × H26.0mm

Artwork: silver 950
Earphone exterior: Light-curing resin

Click here for frequently asked questions >> FAQS


[ Annual Guarantee ]

You can enjoy your sound art piece with confidence because it comes with a warranty. We will provide the best possible support in cooperation with the artist and artisan.



[ ERRMIND’s Restoration System ]

EARMIND's Restoration System allows you to enjoy your favorite works of art forever without worrying about battery drain.

We have developed a new system to replace the body of the wireless earbuds. Works of art can be restored in cooperation with artists and craftsmen. It is an innovative system that respects the people who create and love all cultures and the planet on which they live.

Replacement of the main body of the earbuds: ¥22,000 (TAX INCLUDED)

Restoration of the art piece: Please consult with us.

Spec information


SoC: Qualcomm QCC3040
Version: Bluetooth V5.2
Communication frequency range: 2.402GHz-2.480GHz
Communication Distance: Up to 10m without obstacles
Profile: A2DP, AVRCP, HFP, HSP
Codec: SBC, AAC, aptX, aptX adaptive
Pairing name: EARMIND


Driver: Dynamic 6.5mm 30Ω±4.5(15%)
Sound pressure level: 98±3dB
Playback frequency characteristics: 20HZ-20KHZ
Rated output: 2mW
Continuous playback time: Music playback time 7H (70% volume), talk time 4H


Battery: LIR1054 Lithium-ion battery 1C/45mAh
Charging time: about 1.5 hours

charging case

Battery: 600mAh lithium polymer battery, volumetric energy density: 318Wh/L
Charging time: about 2 hours
TYPE-C power input: 5V/1A
Dimensions: 75.5mm (L) * 49.5mm (D) * 55mm (H)


Waterproof grade: None Charging case weight: 78g Earphone weight: 7g (excluding one side and art piece)