FiiO FD3 - The diamond among in-ear headphonesThe FiiO FD3 is based on the dynamically constructed flagship FiiO FD5, but is reduced to the essentials - and thus much more affordable. Nevertheless, such elementary technologies as the "Diamond-Like-Carbon" diaphragm, the acoustic prism and a noble aluminium/magnesium housing are also used and together ensure outstanding sound.The highlights of the FiiO FD3 at a glance:    Diamond-Like Carbon - High-strength and lightweight diaphragm    Integrated acoustic prism - For optimum time response    Semi-open cabinet design - Deep, clean bass guaranteed    Elegant and robust enclosure - Made of magnesium and aluminium    Customisable sound - With two sound tubes and many accessories12 mm driver meets Diamond-Like Carbon - Highest sound purityFor first-class sound, 12 millimetres is sometimes enough. At least when they are installed in the FiiO FD3 dynamic in-ear headphones. The diaphragm itself is made of "Diamond-Like Carbon", i.e. carbon that is almost as hard as a diamond. On the one hand, this makes the diaphragm strong and resistant to distortion, but on the other hand, it is extremely light and reacts quickly to impulses in order to reproduce the music signal faithfully.The diaphragm is driven by a magnet with 1.5 Tesla magnetic force and a voice coil from the Japanese specialist Daikoku. This means that power is available in abundance and a clear, structured and powerful sound image is guaranteed.Balanced sound culture - with semi-open cabinetOf course, music should not only sound finely resolved, but also powerful. But as always, there is such a thing as too much of a good thing. The FiiO FD3 is realised as a semi-open design to always maintain just the right balance between punch and naturalness.Not only is this more fun - especially during long listening sessions - but it also protects your sensitive ears.Aluminium meets magnesium - in a beautiful cabinetAlthough the whole is greater than the sum of its parts, every part is important. This is also true, for example, of the housing of a high-quality in-ear headphone like the FiiO FD3. Here, too - as you would expect from FiiO - nothing is left to chance, but instead relies on a precisely CNC-manufactured housing made of aluminium and magnesium.And to make the headphones even more exciting, its housing cheeks are covered with a layer of celluloid, which is then refined with 2.5D glass. This makes it - in every sense of the word - a real highlight for the eyes and ears.Full pipe of music - and interchangeable with a flick of the wristSound is a very personal matter. And as much effort as FiiO puts into guaranteeing excellent sound, they don't know what that means for you personally. But with the two interchangeable sound tubes (i.e. tubes), you don't have to, because it's up to you.The thicker of the two tubes (the version in red) is recommended for all lovers of lively, rather bass-emphasised sound. The thinner tube (the black version), on the other hand, provides a clear, precise sound.It doesn't matter if you prefer one of the two styles or if you want to individualise the sound according to your musical style: Everything is possible with a few simple steps.High quality from A to B - The headphone cableWhere FiiO has put so much effort into the headphones themselves, no compromises have been made with the headphone cable. And so the FiiO FD3 uses a high-quality connection made of monocrystalline copper with a total of 120 individual conductors.At the same time, you are also extremely flexible thanks to the MMCX connector on the headphones themselves. No matter whether you want to change to an even higher quality cable or have to replace the cable due to a defect: The change is done in no time at all. The clever MMCX connector makes it possible.Lots of accessories - practical and intelligentThe sound of the FiiO FD3 can already be adjusted using the two sound tubes supplied, but with the ear tips included in the scope of delivery, FiiO is taking the subject a big step further. The package includes three sets of Balanced Ear-Tips in sizes S, M and L, three sets with bass tuning and more conciseness in the vocal range. In addition, for very sensitive ears, there are two pairs of Foam Ear-Tips that adapt perfectly to the shape of your inner ear by means of body heat and ensure a perfect fit.Also included: the practical storage box, a cleaning brush for cleaning after longer use and an MMCX assist tool. Don't you know this? You'll learn to love it when changing the MMCX cable, because it makes replacement even easier. 

FiiO FD3 Pro 2024 – Der Diamant unter den In-Ear-Kopfhörern, aufpoliert Der In-ear-Kopfhörer FiiO FD3 Pro 2024 im Überblick: Der FiiO FD3 Pro 2024 basiert wie der FiiO FD3 2024 auf dem dynamisch aufgebauten Flaggschiff FiiO FD5, ist allerdings auf das wesentliche reduziert – und somit deutlich erschwinglicher. Selbstverständlich vereint er trotzdem alle elementaren Technologien wie die Membran aus „Diamond-Like-Carbon“, das akustische Prisma und das wertige Gehäuse aus Aluminium/Magnesium in sich und punktet zudem mit einem eigens für die Pro-Variante entwickelten Kopfhörerkabel.Die Highlights des FiiO FD3 Pro 2024 im Überblick: Diamond-Like-Carbon – Hochfeste und leichte Membran Akustisches Prisma integriert – Für ein optimales Zeitverhalten Elegantes und robustes Gehäuse – Aus Magnesium und Aluminium Klang Individuell anpassbar – Mit zwei Soundtubes und viel Zubehör Eigens entwickeltes Kopfhörerkabel – Exklusiv für den FiiO FD3 Pro 2024 mit wechselbaren 3,5 mm und 4,4 mm Klinkenstecker 12 mm-Treiber trifft Diamond-Like-Carbon – Höchste Klangreinheit Für erstklassigen Klang reichen manchmal schon 12 Millimeter aus. Zumindest, wenn sie im dynamischen In-Ear-Kopfhörer FiiO FD3 Pro verbaut sind. Die Membran an sich besteht aus „Diamond-Like-Carbon“, also Karbon, das nahezu so hart ist wie ein Diamant. Damit ist die Membran zum einen fest und widerstandsfähig gegenüber Verzerrungen, zum anderen aber extrem leicht und reagiert blitzschnell auf Impulse, um das Musiksignal originalgetreu zu reproduzieren. Angetrieben wird die Membran dabei von einem Magneten mit 1,5 Tesla Magnetkraft und einer Schwingspule vom japanischen Spezialisten Daikoku. Damit steht Kraft im Überfluss bereit und ein klares, strukturiertes und kraftvolles Klangbild ist garantiert.Ausbalancierte Klangkultur – Mit halboffenem Gehäuse Klar, Musik soll nicht nur fein aufgelöst, sondern auch druckvoll klingen. Aber wie immer gilt, es gibt auch zu viel des Guten. Der FiiO FD3 Pro ist als halboffenes Design realisiert, um stets genau die richtige Balance zwischen Druck und Natürlichkeit zu bewahren. Das macht nicht nur mehr Spaß – besonders bei langen Hörsessions – sondern schützt zudem auch noch Ihre empfindlichen Ohren.Aluminium trifft Magnesium – In einem wunderschönen Gehäuse Das Ganze ist zwar mehr als die Summe seiner Teile, trotzdem kommt es aber auf jedes Teil an. So zum Beispiel auch beim Gehäuse eines hochwertigen In-Ear-Kopfhörers wie dem FiiO FD3 Pro. Auch hier überlässt man – wie man es eben von FiiO gewohnt ist – nichts dem Zufall, sondern setzt auf ein präzise CNC-gefertigte Behausung aus Aluminium und Magnesium. Und um dem Kopfhörer noch spannender zu gestalten, werden seine Gehäusewangen mit einer Schicht Zelluloid überzogen, was anschließend mit 2,5D-Glas veredelt wird. Somit ist – im Sinne des Wortes – ein echtes Highlight für Augen und Ohren.Volles Rohr Musik – Und mit einem Handgriff austauschbar Klang ist eine ganz persönliche Angelegenheit. Und so viel Mühe man sich auch bei FiiO gibt, hervorragenden Klang zu garantieren, so weiß man doch nicht, was das für Sie persönlich heißt. Mit den zwei austauschbaren Sound Tubes (also Röhren) muss man das aber auch gar nicht, denn Sie entscheiden das selbst. Die dickere der beiden Röhren (die Version in Rot) empfiehlt sich für alle Liebhaber von lebendigem, eher bassbetontem Klang. Die dünnere Röhre (die Variante in Schwarz) hingegen sorgt für ein klares, präzises Klangbild. Ganz egal ob Sie ganz grundsätzlich einen der beiden Stile eher bevorzugen oder je nach Musikrichtung den Klang individualisieren möchten: Mit ein paar Handgriffen ist alles möglich.Maximal konsequent – Speziell für den FiiO FD3 Pro entwickeltes Kabel Der Unterschied vom FiiO FD3 Pro zum FiiO FD3 ist das beiliegende Kopfhörerkabel. Setzt FiiO beim FD3 auf eine hochwertige Verbindung aus monokristallinem Kupfer mit insgesamt 120 Einzelleitern, kommt im FD3 Pro eine nochmals hochwertigere Verbindung zum Einsatz. Ein Kopfhörerkabel, welches konsequent für die Pro-Variante entwickelt wurde und auf maximale Klangreinheit gezüchtet wurde. Das bedeutet: 152 Einzelleiter aus versilbertem, monokristallinem Kupfer, die gemeinsam für einen klaren, detaillierten Klang sorgen. Ein weiteres, cleveres Detail dabei: Der Anschluss am Kabel ist direkt austauschbar und die passenden Adapter sind natürlich im Lieferumfang. Somit wechseln Sie im Handumdrehen zwischen der symmetrischen  4,4 mm Klinke und dem klassischen 3,5 mm Klinkenanschluss. Abgerundet werden all diese Ideen und Entwicklungsschritte durch den praktischen MMCX-Anschluss auf der Kopfhörerseite. Ganz gleich, ob Sie auf ein noch hochwertigeres Kabel umsteigen möchten oder das Kabel aufgrund eines Defekts austauschen müssen: Der Wechsel ist mit wenigen Handgriffen erledigt.Noch mehr Zubehör im Lieferumfang – Praktisch und intelligent Der Klang des FiiO FD3 Pro ist zwar schon über die zwei mitgelieferten Sound Tubes anpassbar, mit den im Lieferumfang enthaltenen Ear-Tips denkt man das Thema bei FiiO aber gleich noch einen großen Schritt weiter. Und so finden Sie drei Sätze Balanced Ear-Tips in den Größen S, M und L im Paket, drei Sätze mit Bassabstimmung sowie mehr Prägnanz im Stimmbereich. Außerdem für ganz sensible Ohren zwei Paar Foam-Ear-Tips, die sich mittels Körperwärme perfekt an die Form Ihres Innenohres anpassen und für perfekten Sitz sorgen. Außerdem mit dabei: Die praktische Aufbewahrungsbox, eine Reinigungsbürste zum Säubern nach längeren Einsätzen und ein MMCX-Assist-Tool. Das kennen Sie nicht? Beim Wechsel des MMCX-Kabels werden Sie es lieben lernen, denn es macht den Austausch noch einfacher.

FiiO JD1 Connect directly to your smartphone or computer via USB Type-C port With wired remote control and MicrophoneEntry-level all-rounder 10 mm LCP driver Asymmetrical internal and external magnetic circuits Balanced pressure relief of the front and rear chambers Die-cast zinc alloy front panel Triangular ergonomic shape Low weight of only 7 g each USB Type-C and 0.78 2-pin detachable cable Aluminium alloy sound nozzle Hi-Res Audio certified - entry into the world of audio Jointly developed by FIIO and Jade Audio, the J-Series earphones have been praised by users for their simple yet elegant design and excellent sound quality at an affordable price. The new JD1 Series dynamic IEMs are a breath of fresh air in the vast selection of IEMs on the market. The JD1s are an excellent entry into the world of hi-fi earphones, offering great sound quality from a trusted brand at an affordable price. The included cable with in-line controls and microphone allows you to quickly relay information to your teammates, while the JD1's precise sound positioning gives you an advantage over your opponents. *The included cable features an HD microphone with integrated controls - the centre button is for answer/hang up and play/pause; the top and bottom buttons are for volume adjustment. Lowering the barrier to entry in the hi-fi industry Entry-level Dynamic 10mm LCP driver earphones should be well crafted so that more users can experience the wonders of high-fidelity sound. To this end, the development team equipped the JD1 with a dynamic 10 mm LCP (Liquid Crystal Polymer) driver. Thanks to its light weight and high rigidity, this driver is capable of delivering rich and powerful bass that brings out the best in instruments such as drums. And thanks to careful tuning by the development team, the driver is also very detailed and low-distortion like a real hi-fi headphone, providing a clear and natural sound. More robust performance Asymmetrical internal and external magnetic circuits FiiO's asymmetrical internal and external magnetic circuit design has been used in several other products, including the FD3, IEM's ‘Little Conch’ series and other products. Now this technology has found its way into the JD1. Compared to the traditional design with a single internal or external magnet, the asymmetrical design of the internal and external magnetic circuit increases the magnetic field density around the voice coil, resulting in a more powerful and robust sound as well as improved transient response. Specifications Wearing method: in-ear monitor worn around the ear Driver: 10mm LCP dynamic driver Frequency response: 20Hz-20kHz Impedance: 24Ω@1kHz Sensitivity: 109dB/mW@1kHz Cable material: OFC oxygen-free copper Cable length: About 120cm Weight of single device: About 7g (without cable) Headphone connector: 0.78 2pin detachable cable Audio connector: USB Type-C Scope of delivery JD1 earphones*1USB Type-C to 0.78 2-pin cable with microphone*1 Ear tips S/M/L*3 pairs (M pre-installed) User manual*1

Dynamic in-ear headphones 10 mm polymer composite diaphragm Dual-cavity design 0.033 mm Japanese CCAW voice coil External high-power N52 magnet High-purity oxygen-free copper cable In-line control with microphone included Independent DSP chip 6 built-in tuning presets Supports lossless 384 kHz/24-bit audio decoding High Res Audio certified 10 mm polymer composite diaphragm To set the benchmark for entry-level sound quality, the JD10 features a carefully selected 10 mm polymer composite diaphragm. This cone is characterised by high rigidity, low distortion and optimal damping. It delivers a rich and full bass that blends perfectly with the mids and highs to create a really pleasant sound. In addition, thanks to careful acoustic tuning that utilises the cone's stiffness, the JD10 is high-resolution in a way rarely found among its competitors and capable of reproducing even subtle audio details. Dual cavity design The JD10 utilises a dual acoustic cavity design with separate damping control systems in each cavity. This precise control of airflow damping helps to reduce distortion, effectively improving driver cone movement and bass response. When listening to complex music, this design allows the JD10 to capture more nuance in the bass notes - resulting in refreshingly fast and detailed bass. 0.033 mm Japanese CCAW voice coil To achieve higher sound quality from the driver, the JD10 uses a special ultra-fine Japanese CCAW voice coil with a wire diameter of only about 0.033 mm. This voice coil significantly reduces the overall mass of the driver thanks to the thinness of the wires and the properties of CCAW. This makes it easier to get the driver to produce higher volumes and also results in an improved impulse response. The result is a clearer and more pleasant sound. External N52 high-performance magnet The JD10 uses an external magnet design. This allows a larger magnet to be used, which surrounds the voice coil more effectively and produces a more powerful sound. N52 high performance neodymium-iron-boron magnets were chosen for their high energy density and ability to deliver their power over a uniformly wide range to ensure optimum driver performance. 3.7g light The JD10 was designed from the ground up to be a comfortable and lightweight, versatile pair of in-ear headphones. Each JD10 earbud weighs just 3.7g, making them among the lightest in their class, allowing for long listening sessions without fatigue. High-purity oxygen-free copper cable 3-button inline control with microphone to switch freely between hi-fi music and voice calls. High-purity oxygen-free copper wires that enable error-free transmission of rich audio signals. 0.78 mm 2-pin detachable headphone cable that allows you to upgrade your headphones in the future.

In-ear headphones with a dynamic driverBeryllium-coated driverPure titanium housing, CNC-machinedCryogenically treated, silver-plated single-crystal copper cableDynamic driver with a 13.8 mm outer diameterW-shaped diaphragm with independent surroundAcoustic prism front chamberAirflow-controlled, damped rear chamberTwo interchangeable tuning nozzlesIncludes interchangeable plugs (3.5 mm/4.4 mm/TC)0.78 mm 2-pin detachable cableHi-Res Audio certifiedUltimate elegance – a new movement in soundThe History of the OAK SeriesThe new OAK series pays homage to the timeless craftsmanship of Audemars Piguet. We honor the watchmaker’s pursuit of perfection and translate this dedication into rock-solid build quality and an elegance that never fades. Where sound meets light, individuality and sophistication take center stage.OAK NANO is the first model in the OAK series, the spiritual successor to the FIIO FD7, and SNOWSKY’s first flagship product. The OAK NANO is the result of two years of research and development—a journey of ceaseless refinement in pursuit of jewelry-grade craftsmanship and an exceptional sonic character. The development team chose beryllium metal for the diaphragm—the same premium material found in the FD7. Its rare combination of lightness and rigidity ensures a distinctively clear and open sound character. Together with a series of sophisticated acoustic innovations, the OAK NANO transforms every listening session into a first-class audio experience.High-Quality Materials – Sublime Sound FidelityBeryllium Alloy DiaphragmThe OAK NANO inherits the acoustic DNA of the legendary FIIO FD7 and carries on the legacy of beryllium diaphragms while breaking new ground. As a driver material, beryllium is ultra-light, exceptionally rigid, and superior to aluminum or titanium. Its low damping and high sound velocity ensure no unwanted coloration, making it the top choice for high-end audio.While pure beryllium is becoming increasingly rare due to global supply chains, the OAK NANO utilizes a special beryllium alloy that mirrors the performance and sonic characteristics of the pure metal. FiiO has pushed the boundaries of precision engineering to reduce the thickness of the diaphragm and thus further exploit the material’s potential. This significantly improves high-frequency reproduction, transient response, and distortion control, enabling the precise reproduction of the finest details—from the crisp attack of percussion to the delicate nuances in vocals.Refined Sophistication – Timeless ElegancePure Titanium HousingThe OAK NANO utilizes pure titanium, prized for its density and hardness, to create a housing that remains flawless over time. Through a series of sophisticated and precise manufacturing processes, including mirror polishing, CNC machining, and PVD coating, its distinctive design language comes to life, showcasing the headphones’ unique color, luster, and sharp contours with impressive clarity.The conductor reimagined – The next level of sonic purity-192 °C cryogenically treated with liquid nitrogen, silver-plated single-crystal copper cableFiiO selects 6N OCC (99.99998% pure) single-crystal copper as the raw material. This ultra-high-purity conductor is naturally free of grain boundaries and offers exceptionally low resistance and high conductivity, while eliminating oxygen and hydrogen impurities that compromise signal integrity.To push electrical performance to its absolute limit, each conductor undergoes a 168-hour (7 full days) deep cryogenic treatment.At -192 °C, internal stresses in the metal are completely relieved, allowing the atomic structure to rearrange itself and form a more uniform, denser arrangement. This molecular restructuring ensures a more uniform flow of electrons, resulting in a remarkably clear and fluid sound—free from the harshness or “graininess” often found in standard cables.High-flux-density magnetic control – Unleashed dynamic power13.8-mm dynamic driver with external magnetBuilding on the legacy of the FD7, the OAK NANO features a larger 13.8-mm driver unit with a correspondingly enlarged and thickened magnet. A larger magnet means a stronger and more stable magnetic field. Laboratory tests confirm that the magnetic flux density in the voice coil gap reaches nearly 1.5 T, with distortion of only 0.1% even at 114 dB SPL. This immense magnetic force provides the necessary driving power for greater amplitude and minimal vibration distortion, resulting in outstanding transient response.*Test data from FIIO Acoustic LabsTailor-made – Excellence in Every DetailAdvanced dynamic driver designStarting with the acoustic characteristics of a single dynamic driver, FiiO spared no effort in refining the OAK NANO’s diaphragm, magnetic system, and voice coil—every detail is a deliberate step toward higher performance and a more refined sound.-Diaphragm thickness -50%Lighter, stronger beryllium dome tweeterIn the pursuit of perfection, FiiO has achieved the impossible: a larger beryllium dome that is simultaneously significantly thinner. Combined with FiiO’s newly developed high-flux magnetic circuit, the OAK NANO achieves lightning-fast transient response and breathtaking high-frequency reproduction.-Effective vibrating area +30%W-shaped independent surroundInspired by high-end home audio systems, the OAK NANO features a separate beryllium dome and a beryllium-coated suspension design that eliminates the weaknesses of conventional diaphragms. The result is a 30% larger effective diaphragm area and significantly greater energy reserves. Experience sound that is beautifully textured and undeniably powerful-Magnetic flux density 1.5 Tesla1.5-T high-flux external magnet designWith a dynamic headphone, everything begins and ends with the driver. The OAK NANO features a magnetic flux density of 1.5 Tesla, which significantly improves conversion efficiency and driver control. This high-flux environment effortlessly drives the diaphragm, resulting in a remarkably full-bodied and authoritative sound.-Pure Copper CCAW Voice CoilRefined High-Frequency SoundstageSpecially Selected Pure Copper Voice CoilWhile conventional single-driver designs often use lightweight copper-clad aluminum (CCAW) to enhance detail, the OAK NANO takes a more refined approach. Since our beryllium dome naturally offers high resolution in the high-frequency range, we opted for a pure copper voice coil to balance the sound character.This choice lends the sound a rich, soft warmth and a gentle, organic timbre—resulting in a deeply emotional and fatigue-free listening experience.Precision Correction – The Sound Stays on TrackAcoustic Prism System in the Front ChamberThe OAK NANO utilizes an advanced Acoustic Prism to ensure your music stays “on track.” This technology, proven in the acclaimed FD7, corrects the phase of sound waves as they travel through the chamber. By eliminating time delays and standing wave distortions, it enables superior control over every frequency, resulting in a refined sound.Precise airflow control – transformed mids and bassAirflow-controlled, damped rear chamberUsing micro-precise CNC machining, a high-density acoustic damping grid has been integrated into the vent openings of the OAK NANO’s rear chamber to regulate internal airflow. This special damping effectively suppresses resonances, resulting in deeper and more impactful bass. The midrange also benefits, with noticeable improvements in richness and density in the 100 Hz to 4 kHz range. The result is a fuller, more satisfying midrange and bass across the board.Two sound profiles – Discover a new sound at any timeTwo interchangeable tuning nozzlesThe OAK NANO features interchangeable tuning nozzles, including both red and black acoustic filters, to offer advanced tuning options. Each tuning nozzle features different densities of damping material to offer a total of two distinct sound profiles that match your personal listening preferences. Red nozzleMaster of atmosphere. Deep, present bass foundation with a powerful sense of space. Perfect for pop, rock, and folk.Black TipPrecise and detailed. Crystal-clear transparency with bright, detailed high-frequency reproduction. Perfect for classical and instrumental music.Seamless compatibility – tailored to your needsDetachable cable and interchangeable plugsThe OAK NANO was designed for ultimate flexibility. With a fully detachable cable and an interchangeable connector system, it effortlessly adapts to any listening environment. The package includes three interchangeable connectors to cover all your devices. Of particular note is the Type-C connector, which unlocks a variety of real-time adjustment options—giving you the flexibility of multiple setups in a single device.3 interchangeable connectors8-band precision PEQThe OAK NANO comes standard with 3.5mm single-ended, 4.4mm balanced, and Type-C DSP connectors for digital decoding.The Type-C connector houses a BES3001-SP DSP audio decoding chip with a balanced output, supporting the decoding of high-resolution 32-bit/384 kHz PCM audio as well as an 8-band precision PEQ setting. Thanks to FIIO’s proprietary algorithm and access via the FIIO Control app or web interface, users can effortlessly customize, export, and save custom audio curves.* Web PEQ access: Official FIIO website > Support > Web-based PEQ settings.*The Type-C connector does not currently support UAC 1.0 (e.g., Xbox, Switch, and PlayStation consoles).* Support for the FIIO Control App is currently limited to Android; iOS is not yet supported.0.78 mm 2-pin detachable cableThis widely used connector offers comprehensive compatibility with a variety of aftermarket cables. The robust 2-pin design ensures a secure fit and provides an absolutely stable connection for an uninterrupted signal path.Premium Accessories – Exceptional Standards22 ear tips and a custom-designed carrying caseTrue to our commitment to always go the extra mile, the OAK NANO comes standard with 22 pairs of ear tips in various designs, as well as a newly designed carrying case. Everything you need, right out of the box—no additional purchases required.22 pairs in 3 different earbud designs-FIIO HS20Made from high-quality silicone that highlights the warmth of vocals and the depth of low frequencies. With German LFGB certification for food-grade quality, it sits comfortably and securely in the ear—soft, breathable, and gentle on the skin.-FIIO HS18Designed with a wide opening that matches the nozzle size of the OAK NANO for direct, unobstructed sound transmission. Thanks to its ultra-thin 0.4 mm flange, it is virtually invisible when worn.-SpinFit CP360Features medical-grade silicone and a unique swivel design that adapts to your individual anatomy, ensuring a secure, comfortable fit.-Custom-made carrying caseThis carrying case, crafted exclusively for the OAK NANO, combines an aluminum alloy with PU leather, offering a understated yet sophisticated design with an unmistakably premium feel.The Gold Standard of Sound Fidelity – Officially RecognizedHi-Res Audio CertifiedOAK NANO has met the certification standards for high-fidelity audio established by the Japan Audio Society and the Consumer Electronics Association—a trusted seal of quality that guarantees faithful sound reproduction.