Portable High-Res Bluetooth Transmitter Qualcomm QCC5181 ChipFiio BT11 is equipped with Qualcomm's flagship QCC5181 Bluetooth chip. lt features a quad-core processor architecture and two 240MHz Qualcomm Kalimba audio DSPs, providing powerful computational capabilities for advanced and complex audio algorithms and tasks. lt also supports Snapdragon Sound, which delivers an immersive lossless audio experience. Bluetooth 5.4Fiio BT11 supports thelatest Bluetooth 5.4 version.lt provides more stable connections, longer transmission ranges, and overall system performance improvements - all at lower power consumption. Colorful RGB IndicatorThe color RGB indicator clearly and instantly displays the working status of the device as well as the current Bluetooth codec. Support Full Bluetooth CodecFiio BT11 not only supports LDAC and SBC codecs, but also supports all Qualcomm aptX codecs including aptX Adaptive, aptX Lossless, aptX, aptX HD, aptX Low Latency. Full enjoy having access to a wide variety ofaudio codecs. Two Simultaneous ConnectionsFiio BT11 supports simultaneously connecting to two receiving devices, allowing you to easily enjoy high-quality Bluetooth audio together with your friends and family. Create more beautiful moments by immersing yourselves in binge-watching movies or TV dramas. Multi-compabilityFiio BT11 enables devices like the iPhone 15 series, PS5, and Nintendo Switch to support LDAC, aptX Adaptive at 96kHz/24bit, and aptX Lossless - ushering in a new era of lossless audio transmission, providing higher-quality sound and a more stable audioconnection experience. Laptops and computers plug and play to catch upon TV shows and movies, and listen to music, which will impress you with higher-evel sound quality. Support iPhone15 series and other USB Type-C iOS or iPad OS devices, Window/mac OS computers, PS5, and Switch. SpecificationColor: Black, Silver Bluetooth chip: Qualcomm QCC5181 Bluetooth version: 5.4 Bluetooth codec support: LDAC, aptX Adaptive, aptXLossless, aptX, aptX HD, aptX Low Latency, SBC aptXHD, aptX Low Latency, SBC Transmission range: Over 50 meters (all codecs) Dimensions: About 28x21x9mm Weight: About 3g Static power consumption: 22mA What`s in the box BT11 USB-A to USB-C Adapter Quick start guid

Bluetooth Dac/Amp Portable Bluetooth headphone amplifier Auto mode for automatic switching on and off with the car motor Integrated omni-directional microphone with noise-cancelling function Fixing clip Red and blue status indicator for battery level and Bluetooth codec Two Bluetooth devices can be connected simultaneously Bluetooth version: 5. 3 Supported Bluetooth codecs - AAC, LDAC, SBC Battery life up to 15 hours The BTR11 has a built-in independent headphone amplifier chip with extremely low internal resistance and an output power of up to 45 mW, which is sufficient for excellent performance with in-ear headphones. The wireless Bluetooth connection allows you to enjoy music in a quality comparable to wired connections. The BTR11 has a built-in rechargeable battery that provides up to 15 hours of uninterrupted music enjoyment. When the battery is low, it only takes 1 hour to charge it to 90%, which is almost full power. It is also compatible for charging mobile phones via a data cable with Type-C interface and supports positive and reverse plugging. It has an integrated high-sensitivity omnidirectional microphone and supports call noise reduction to ensure a clear conversation experience. The housing is equipped with a red and blue two-colour display, and the clever display combination can intuitively show power on/off, pairing, charging, low power and 3 Bluetooth formats. Equipped with Bestechnic's latest BES2700 Bluetooth chip that supports LDAC and Bluetooth 5.3. At an affordable price, this Bluetooth headphone amplifier offers hi-fi level wireless audio quality. It is compact and as long as a little finger, weighs only 12.5 g and has an independent headphone amplifier with a maximum output power of 45 mW. The BTR11 combines compactness and performance, setting new standards for Bluetooth headphone amplifiers in this price range!

Bluetooth DAC and headphone amplifier Dual ES9069Q DAC chips Bluetooth 5.4 THX AAA78+ amplification An unrivalled champion The BTR17 combines FIIO's years of experience in the development of DACs and headphone amplifiers. In a compact package, it incorporates flagship-level features such as a multi-stage audio architecture and a precision power supply comparable to other high-end players and DAC/headphone amplifier combinations. It is a true all-rounder that will once again set a new standard among Bluetooth headphone amplifiers. A new chip era, a new era of lossless Bluetooth The BTR17 is equipped with Qualcomm's new flagship Bluetooth chip QCC5181, which not only fulfils the Bluetooth LE audio standard and has a transmission bandwidth of 2.1 Mbps, but also enables lossless quality within the aptX Adaptive system. This means that the chip is able to achieve CD-level lossless sound quality via Bluetooth audio, bringing you even closer to the music with all its fine details. In addition, the BTR17 also supports the latest Bluetooth standard - Bluetooth 5 .4. It also supports the Bluetooth audio codecs LDAC, aptX Adaptive 96kHz/24bit and aptX Low Latency, which combined with Snapdragon Sound technology means your Bluetooth listening experience has never sounded so good. Comparison table of Bluetooth encoding bit rates AAC: 328kbps aptX Adaptive: 420kbps aptX HD: 576kbps LDAC: 990kbps aptX Lossless>1.2Mbps Independent power supply, ‘amplified’ performance with patented desktop mode The BTR17 has a dedicated D.Mode switch (desktop mode) and a connection for an external, independent power supply. If you connect the BTR17 to a phone in desktop mode as a dongle DAC and headphone amplifier, you can also connect an external power supply to the BTR17 via the dedicated power connector. In this way, the BTR17's battery is fully powered via USB, which not only prevents overcharging and over-discharging of the built-in battery, but also enables powerful audio output without draining the battery of the connected phone. Patent number: L202321946664.8 One switch for multiple applications The BTR17 features a convenient three-position PC/BT/PHONE switch that can be used to seamlessly switch between operating modes. By switching modes, the BTR17 can optimise its power supply status according to the connected device, making it perfect for different applications. PC (computer sound card): The device is fully powered by the computer. BT (Bluetooth DAC and amplifier): The device is powered by the internal battery and can be used for charging and power supply when connected to USB. PHONE (phone dongle): The device's internal battery participates in the power supply, reducing the power consumption of the connected phone. XMOS 16-core XU316, ingeniously innovative The flagship XMOS XU316 is used as the USB chip, which is characterised by lower latency, more stable transmission and better compatibility than the USB controllers commonly used. With support for 768kHz/32bit audio, DSD512 native and MQA full decoding, the chip can process almost any audio stream that comes its way. The high processing power of the XU316 also enables a high-resolution PEQ that supports up to 192 kHz audio on the BTR17. Sound tuning, completely at your fingertips, high-precision, lossless 10-band PEQ FIIO has constantly worked on integrating software and hardware to develop user-friendly applications and web interfaces. The continuously refined proprietary PEQ adjustment algorithms allow you to fine-tune EQ frequency points, gain, bandwidth and Q value to your liking. This allows you to fully simulate or correct the frequency response curve of different headphones. You can also import, export, share and save EQ curves so that everyone can enjoy the fun of tuning. *Web-based PEQ storage location: Top status bar of the official FIIO website - Support - Web-based PEQ settings. *There is a dedicated EQ shortcut button on the side of the unit that allows you to quickly select the desired EQ settings. Two cores and four channels, outstanding performance, two flagship ES9069Q DACs Inside the BTR17 are two ESS ES9069Q DACs based on the fourth generation 32-bit HyperStream architecture, offering high performance with lower power consumption. This architecture helps to further reduce the digital noise in the DAC, achieving a dynamic range of 130 dB and an overall distortion of -120 dB. The result is a fuller, musical sound against a clean background. DNR: 130dB THD+N: -120dB THX AAA 78+ headphone amplifier, thoroughly improved The BTR17 utilises the THX AAA 78+ headphone amplifier as used in the well-known FIIO KA17 and M23. The four-channel, fully balanced design with 8 operational amplifiers connected in parallel ensures robust yet controlled performance for a clearer and more natural sound. Miniature amplifier, power sound When USB power is applied to the POWER IN port and desktop mode is enabled, the BTR17's THX headphone amplifier utilises four operational amplifiers connected in parallel to amplify the power to its full potential. The result is a balanced output power of up to 650mW+650mW, an astonishing increase of 203% compared to the BTR7. This is comparable even with desktop headphone amplifiers. Multi-stage hi-fi audio architecture, comparable to premium digital audio players The BTR17 integrates mid to high level hi-fi player level signal processing into its compact housing. Digital signals are skilfully processed by the digital audio and DAC converter with dual clocking. LPF pre-amplification and multi-stage analogue audio processing ensure that details and dynamic range of audio signals are accurately restored - comparable to premium digital audio players. Multi-stage power supply, precise power allocation, three-stage ten-rail precision power supply, limitless energy Inside the BTR17 is a three-stage precision power supply with three main rails. The first stage consists of filtering and overvoltage protection, the second stage is responsible for DC-DC step-up conversion, and the third stage consists of high-precision LDO voltage stabilisation. There is an independent power supply rail for the digital signal, the digital-to-analogue conversion and the analogue amplification parts of the audio circuit as well as more than 10 small rails. This specially designed power supply ensures a stable and sufficient power supply, providing a solid foundation for excellent sound quality. Comprehensive protection, worry-free listening Integrated temperature and DC output detection, prevents damage to the device and headphones when abnormal conditions are detected to ensure safe use. Maximum volume limit, prevents unintentionally high volumes and protects against hearing damage. Flagship style, all in the detail The eye-catching volume control features a 3D design engraved on both sides. The exquisite craftsmanship of the pushable volume control is evident when pressed and turned, providing excellent tactile feel and control. The robust 3D aluminium alloy body with a back cover made of innovative, fully welded rawhide and the two-piece front design provide a comfortable grip. The new user interface, made possible by the 1.3-inch colour IPS screen, supports both Chinese and English displays. The font colour even changes along with the audio format. The entire design of the BTR17 is centred on allowing the user to operate the device intuitively and easily grasp the current status. Durability of the control button: Press＞50000 times Turn＞40000 times *The figures are from FIIO Labs tests. Actual figures may vary due to different usage conditions. Blue: SBC; Cyan: AAC; Purple: aptX/aptX LL; Yellow: aptX HD; White: LDAC; Green: aptX Adaptive/aptX Lossless A flagship experience in every way 3.5 mm and 4.4 mm dual outputs Compatible with most headphones, the 3.5 mm output also supports inline control according to the CTIA protocol Driver-free mode Select UAC1. 0 mode, simply connect and play with your Switch, PS5 and other devices. Two intertwined colours, leatherette case included The BTR17 is available in black or blue and comes with a matching leatherette case that not only protects your devices but also looks stylish. A wonderful companion app, more ways to play In conjunction with the FiiO Control App, you can unlock more features of the BTR17. The app also enables firmware upgrades, whether via OTA or local upgrades. Button interface with full function display The FiiO BTR17 sets new standards in audio performance with its two ES9069Q DACs, THX amplification and advanced Bluetooth connectivity. Suitable for both desktop and mobile use, the BTR17 is a must-have for audio enthusiasts looking for a high-quality listening experience.

Powerbank for FiiO KA17 To avoid excessive strain on your smartphone's battery, FiiO Electronics Technology has introduced the FiiO ESTICK Mini Power Bank, specially designed for the FiiO KA17. This power bank connects directly to the FiiO KA17 via USB-C, making the device only slightly wider and keeping the combination compact. The FiiO ESTICK Mini Powerbank has a 1,100 mAh battery that delivers 5V and 0.6A. This battery can extend the power supply of the KA17 by up to five hours.

Bluetooth Headphone AmplifierQualcomm QCC5181Bluetooth 6.0aptX Lossless/LDAC/LHDC V5Contactless wireless charging for the ear hooksInteractive display on the charging caseDedicated AK4333 DAC85 mW at 32 ΩComes standard with two adapters (MMCX and 0.78 mm)10-band PEQ sound optimizationTrue lossless Hi-Fi Bluetooth earhook designWired sound quality, wireless freedomGives headphones with interchangeable cables the wings of wireless Hi-Fi.Combines FiiO’s long-standing TWS Bluetooth amplifier technology and brings the sound quality of wireless Bluetooth up to the level of wired headphones.In addition, innovative designs such as wireless charging via the ear hooks and interchangeable adapters offer you a truly unrestricted, lossless Bluetooth listening experience.Wireless Charging System for the Ear HooksContactless, sweat-resistantThe ear hooks feature a contactless charging system that completely eliminates the issues of oxidation and contamination associated with traditional charging contacts, significantly extending their lifespan. Additionally, smart features such as powering off when placed in the charging case, powering on when removed, and automatically stopping the charging process when fully charged are implemented.Miniature decoder and headphone amplifier, complete Hi-Fi architectureA complete Hi-Fi decoding and amplification system is housed within the compact ear hook casingThe high-resolution Bluetooth audio signal is processed by the QCC5181 and forwarded as a digital signal to the AK4333 for decoding and amplification, allowing you to enjoy high-resolution Hi-Fi sound quality even with the Bluetooth earhook headset.Flagship Bluetooth chip QCC5181, a benchmark for performanceThe quad-core processor architecture with two integrated 240 MHz Qualcomm Kalimba audio DSPs provides ample computing power for audio processing. It effortlessly handles complex audio decoding and multitasking, ensuring smooth playback and lossless audio. At the same time, it supports Snapdragon Sound technology*, which delivers an immersive, high-resolution wireless audio experience.*Snapdragon Sound technology must be paired with devices that also support this technology.High-resolution Bluetooth encoding for all formats, lossless transmission in CD qualitySupports Bluetooth formats such as aptX Lossless, LDAC, LHDC V5 (192 kHz/24-bit), and aptX Adaptive (96 kHz/24-bit), with a wireless lossless transmission rate of up to 1.2 Mbps. This delivers true lossless, CD-quality sound, reproduces rich audio details, and puts you right in the middle of the action.aptX Adaptive with low latencyGaming mode – secure the victoryEnable aptX Adaptive encoding and switch to gaming mode with a single click – with a latency of just 74.6 ms. Sound effects and combo actions are reproduced seamlessly, allowing you to pinpoint your opponent’s position based on sounds and attack with precision—victory is decided in a fraction of a second.aptX Voice 32 kHz wideband voice transmissionTwo microphones + CVC noise cancellation for uninterrupted communicationSupports aptX Voice at 32 kHz for crystal-clear voice transmission. Combined with two microphones on the ear hook and an improved CVC noise-cancellation algorithm, ambient noise is effectively filtered out and voices are captured with precision. Even in noisy environments, the person you’re talking to will hear you loud and clear.Two AK4333Dual DAC bridge, double the performanceThe dual-DAC design features an AK4333 DAC with 32-bit processing capability for each channel. It is characterized by high performance and low power consumption, features an integrated headphone amplifier function, and is complemented by VELVET SOUND technology—specifically developed for TWS—to deliver an outstanding audio experience.A safer “home” for your earbudsNew display, instant status overviewThe spacious charging case offers your earbuds safer protection and is designed to accommodate earbuds of various sizes* as well as the ear hooks simultaneously. The charging case also features an OLED dot-matrix display that shows real-time information about the earbuds’ status, giving you a quick overview of earbud pairing, battery level, and other details for an even more worry-free experience.* The dimensions listed above apply to the FH19 earbuds. Since the interior of the LINK TWS has an irregular shape, the dimensions are only a guideline; the actual fit during use is ultimately what matters.B Battery life of the earbuds per charge: approx. 7 hoursB Total battery life (earbuds + charging case): approx. 20 hoursOne pair of ear hooks, compatible with two connector types: MMCX and 0.78 mm two-pinThe package includes adapters for MMCX and 0.78 mm two-pin connectors. Thanks to the practical interchangeable design, one pair of ear hooks is suitable for both connectors, so you don’t need to buy additional versions due to different connectors.Details inside and out – all for comfort and sound qualityFrom the materials to the construction, every detail has been carefully designed for comfort and high sound qualityLightweight comfort: Each ear hook weighs only approx. 8 g. Thanks to the combination of the ear tip and ear hook, as well as a skin-friendly, food-grade nano-coating, it sits securely and comfortably without easily falling out during exercise.High-fidelity transmission: The audio signal is transmitted via a silver-coated single-crystal copper wire, which is characterized by excellent conductivity and resolution—laying the foundation for great sound right at the source.Super-light, large-surface buttons – user-friendly and always within reachResponds instantly to a light touch and allows you to control pause/play, volume, and track selection with just a single press. User-friendly touch controls – everything at your fingertips.· Pause – press twice briefly· Resume playback – press once briefly in pause mode· Volume control – press briefly on the left ear (+) / press briefly on the right ear (-)· Track change – press and hold on the left ear / previous track, press and hold on the right ear / next trackAdvanced app features that open up new possibilitiesThe FiiO Control app makes it easy to adjust the 10-band PEQ, “One-to-Two” function, channel balance, as well as Hi-Fi and game modes. Additionally, the PEQ supports importing, exporting, saving, and sharing curves, so you can use the PEQ without any prior knowledge.IPX4-certified splash-proof rating – worry-free and hassle-freeSweat- and splash-proof, suitable for various outdoor scenarios – for a smoother and worry-free listening experience.*IPX4 certification has been confirmed through numerous rigorous tests in the FiiO lab

 Bluetooth DAC und Kopfhörerverstärker Kompakter Bluetooth-DAC und Kopfhörerverstärker Klassisches Kassettenspieler-Design Speziell abgestimmte Retro-Sound-Voreinstellungen Bluetooth und kabelgebundene Betriebsmodi Hochentwickelter Qualcomm QCC5125 Bluetooth-Chipsatz Doppelte CS43131 DAC-Chips Unterstützung hochauflösender Bluetooth-Codecs (LDAC, aptX Adaptive, aptX LL, SBC, AAC) Doppelte Kopfhörerbuchsen (3,5 mm + 4,4 mm) Unterstützung für ein integriertes Mikrofon Starker Ausgang (220mW) 0,96“ Farbiger Bildschirm Auswechselbare und wiederaufladbare 3,7 V Lithium-BatterieKompatibel mit vergleichbaren 10440 (3,7V-450mAh) Batterien, nicht kompatibel mit herkömmlichen AAA (1,5V) Batterien. Bis zu 7,5 Stunden Akkulaufzeit USB-Plug-and-Play-Unterstützung Unterstützung der FiiO-Steuerungsanwendung SnowSky ist die neue Untermarke von FiiO, die mit dem Snowsky Retro Nano, einem wunderschön gestalteten tragbaren Bluetooth-DAC und -Verstärker, auf dem internationalen Markt debütiert. Der Retro Nano ist inspiriert von alten Tonbandgeräten, die mit moderner Technik ausgestattet sind. Der Snowsky Retro Nano ist nicht nur ein auffälliger Bluetooth DAC/AMP, sondern auch ein musikalisches Spielzeug, das mit vielen Funktionen ausgestattet ist und gleichzeitig ein klassisches Aussehen besitzt. Er ist mit dem neuesten QCC5125 Bluetooth-Chipsatz von Qualcomm ausgestattet, der Bluetooth V5.1-Konnektivität auf dem Gerät ermöglicht. Darüber hinaus werden High-Definition-Protokolle wie LDAC, AptX Adaptive usw. unterstützt. Der SnowSky Retro Nano verfügt über eine dynamische Benutzeroberfläche, die das Abspielen einer Kassette simuliert und mit einem einzigen Tastendruck geändert werden kann. Eine weitere Besonderheit des SnowSky Retro Nano ist die vom Benutzer austauschbare, wiederaufladbare 3,7-V-Lithium-Batterie. Die Batterie ist leer? Wechseln Sie einfach zu einer vollständig aufgeladenen Batterie. SnowSky Retro Nano unterstützt auch den USB-Plug-and-Play-Modus. Er kann als USB-DAC/AMP verwendet werden. SnowSky Retro Nano verfügt auch über speziell abgestimmte Sound-Presets, einschließlich Retro-Sounding-Presets. Der Benutzer kann diese über die FiiO Control-Anwendung auswählen! Eine Reise in die Vergangenheit Der SnowSky Retro Nano hat genau wie sein Name einen klassischen Retro-Look, der Sie auf eine Reise in die Vergangenheit mitnimmt. Der DAC/AMP verfügt über einen klassischen Casstte-Player-Look mit physischen Tasten und einer dynamischen Benutzeroberfläche, die ein abspielendes Band anzeigt. Sein Design ist von Retro-Kassettenspielern inspiriert. Erweiterte Bluetooth-Konnektivität Mit Qualcomms neuestem QCC 5125 Bluetooth-Chipsatz bietet der SnowSky Retro Nano erweiterte Bluetooth V5.1-Konnektivität. Er bietet eine stabile, verzögerungsfreie Bluetooth-Verbindung mit Unterstützung für hochauflösende Bluetooth-Protokolle wie LDAC, AptX Adaptive, AptX LossLoss und mehr. Auswechselbare Batterie Der SnowSky Retro Nano unterstützt eine endlose Wiedergabe dank seines austauschbaren Akkudesigns. Der Retro Nano ist mit einer wiederaufladbaren 3,7-V-Lithium-Batterie ausgestattet, die bis zu 7,5 Stunden Spielzeit bietet. Sie ist vom Benutzer austauschbar, d.h. wenn die aktuelle Batterie leer ist, ersetzen Sie sie einfach durch eine neue oder eine voll aufgeladene Batterie, um die Wiedergabe fortzusetzen. Endlose Wiedergabe mit USB-Modus SnowSky Retro Nano unterstützt auch den USB-DAC-Modus. Sie können zwischen den Optionen Telefon/PC für den USB-DAC-Modus wählen. Der Telefonmodus nutzt die eigene Batterie des Retro Nano, während der PC-Modus die Energie des angeschlossenen Geräts nutzt. Leistungsstarke Sound-Sektion mit Dual-DAC und Verstärkern Der SnowSky Retro Nano ist mit einer leistungsstarken Klangverarbeitungssektion mit zwei DAC-Chips und Verstärkern ausgestattet. Das Gerät verfügt über zwei CS43131 DAC-Chips, die für eine scharfe Signalverarbeitung sorgen. Diese werden mit Hochleistungs-Verstärkerchips kombiniert, die eine starke Leistung von bis zu 220mW für ein angenehmes Hörerlebnis versprechen. Retro-Design Der RETRO NANO kombiniert Vintage-Ästhetik mit moderner Technologie. Er ist in den klassischen Farben Weiß und Blau erhältlich und wird mit zwei Aufkleber-Sets zur Personalisierung geliefert. Das kompakte Gehäuse ist leicht und einfach zu transportieren und damit perfekt für den Einsatz unterwegs.

True Wireless Bluetooth Earbuds Hook Amplifier Bluetooth 5.2 Earhook Headphone Amp with LDAC MMCX/0.78mm connector Wireless Charging The FiiO UTWS5 2025 redefines true wireless audio with its high-resolution audio performance and innovative touchless wireless charging. Equipped with a Qualcomm QCC5141 Bluetooth 5.2 chip and two AK4332 DACs, the UTWS5 delivers low distortion, high fidelity sound and reliable connectivity. It offers Hi-Res Bluetooth support with LDAC, aptX Adaptive and LHDC formats and delivers up to 96 kHz/24 bit audio. With its sleek design, IPX4 waterproof rating and memory metal earhook for a secure fit, it's perfect for high-quality wireless audio playback on the go. High-resolution Bluetooth audio Supports LDAC, LHDC and aptX Adaptive for audio quality of up to 96 kHz/24 bit for a superior wireless hi-fi listening experience. Touchless wireless charging The UTWS5 utilises a touchless charging design to avoid oxidation issues and extend the life of the product. Simply place it in the charging box to use the on/off function. Qualcomm QCC5141 Bluetooth 5.2 Enhanced with TrueWireless Mirroring for seamless switching between left and right channels, enabling low latency and stable connections. Independent DAC and amplifier Two AK4332 DACs with Velvet Sound technology amplify each channel to deliver powerful sound with low power consumption. 10-band PEQ sound tuning Customise your sound experience with a 10-band PEQ via the FiiO Control app. Choose from 7 presets or fine-tune frequency, gain and bandwidth. 32-level volume control Enjoy precise volume control with 32 levels, allowing you to set the perfect volume for any environment. Durable and ergonomic design The UTWS5 is lightweight (8g per earhook) and features memory metal for a secure fit. It is designed for comfort and stability during any activity. Multi-device pairing Supports simultaneous connection to two devices so you can seamlessly switch between music and calls. IPX4 water resistance Protects against sweat and light splashes, making the UTWS5 suitable for outdoor activities and workouts.

Bluetooth Dac/Amp Versatile connection options User-friendly design High performance Long battery life Great workmanship Versatile connection options Supports both Bluetooth and a 3.5 mm cable input. Experience high-fidelity, low-latency music anytime, anywhere. Also works as a desktop Bluetooth receiver and amplifier, making it an ideal partner for hi-fi headphones. User-friendly design Designed with you in mind. Compact yet equipped with extensive setting options and simple controls. With a rotary volume control to prevent accidental operation, an easy-to-use gain switch and a toggle switch for bass amplification. High performance The OPA1656 operational amplifier perfectly supports headphones with an impedance of up to 300 ohms and ensures a clear and clean sound. Developed by audio professionals with two decades of experience, you are guaranteed an intense experience where no musical detail is left behind. Long battery life The N3 is powered by a robust 1200 mAh lithium battery and promises up to 10 hours of uninterrupted music enjoyment. The isolated power supply ensures consistent and unaltered sound quality, so your music can be played back without any hiccups. Exquisite craftsmanship The CNC-machined aluminium alloy housing not only looks stunning but also guarantees durability and a premium feel, feel the difference with every interaction. What`s in the boxFosi Audio N3 headphone amplifier x 1 Type A charging cable x 1 User manual x 1