{"product_id":"fiio-m21-portable-high-res-lossless-music-player-open-box","title":"FiiO M21 Portable High-Res Lossless Music Player (Open Box)","description":"\u003ch2\u003eM21 Portable High-Res Lossless Music Player\u003c\/h2\u003e\n\u003cp\u003eNew octa-core 6nm Snapdragon 680 | Android 13 | 4x CS43198 DACs\u003cbr\u003eFully balanced 2-stage amplificationsDual Type-C ports | Low jitter coaxial output\u003cbr\u003eDesktop\/Portable dual power supply modes | 950mW high output power\u003cbr\u003e4.7-inch compact HD screen | 3.5mm+4.4mm headphone\/LO dual output\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0065\/4432\/6771\/files\/10863555_crop.jpg?v=1761063060\" alt=\"Hero image of both colors\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003ch2\u003eA \"Hearty\" Benchmark\u003cbr\u003eNew Paradigm\u003c\/h2\u003e\n\u003cp\u003eThe M21 redefines the entry-level class with its flagship lineage, Its internal and external \"hearts\" are full of \"heart\" in providing you with enjoyment. Its compact screen and class-defying performance are a massive step forward, Aiming to be a benchmark for an entirely new generation.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0065\/4432\/6771\/files\/10850825_crop.jpg?v=1761063097\" alt=\"M21 in blue\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003ch2\u003eFlagship SoC A new entry-level benchmark\u003c\/h2\u003e\n\u003cp\u003eThe Qualcomm Snapdragon 680 has superior performance with less power consumption than the SoCs used by players in the same class. It provides a smooth experience with Android 13.]\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0065\/4432\/6771\/files\/10850826_crop.jpg?v=1761063146\" alt=\"Qualcomm Snapdragon 680\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003ch2\u003eFour-way fully balanced amp architecture\u003c\/h2\u003e\n\u003ch3\u003e4×CS43198 Full of \"hearty\" power\u003c\/h3\u003e\n\u003cp\u003eThe four DAC chips allow for an eight-channel fully differential output design, fully unleashing the potential of headphones with class-defying dynamic performance and high anti-interference capabilities. The headphone amplifier section adopts a two-stage circuit design: the first stage is responsible for voltage amplification, while the second stage handles current expansion - all ensuring purer sound with rich detail.\u003c\/p\u003e\n\u003ch3\u003ePatented desktop mode Battery protection expert\u003c\/h3\u003e\n\u003cp\u003eDesktop mode makes an appearance on an entry-level FIIO player for the first time. When desktop mode is enabled, the M21 is completely powered by an external power supply. The built-in battery is neither charged nor discharged, allowing you to use the player safely on the desktop without degrading its battery. \u003c\/p\u003e\n\u003ch2\u003ePortable\/desktop dual power supply modes A jump in performance\u003c\/h2\u003e\n\u003cp\u003eIn portable mode, it operates with standard voltage power supply. When using the external power \u003cstrong\u003e\"Super high gain\" mode\u003c\/strong\u003e, the player automatically switches to using a high- voltage power supply \u003cstrong\u003ewith 21Vpp (300Ω) peak drive voltage and 950mW (32Ω) massive output power\u003c\/strong\u003e. This delivers desktop-level power output, making the player a better fit with a wider range of earbuds or headphones for a truly extraordinary auditory feast.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0065\/4432\/6771\/files\/10899038_crop.jpg?v=1761063218\" alt=\"M21 in desktop mode\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003ch2\u003eTrue quality Inside and out\u003c\/h2\u003e\n\u003cp\u003eThe fully aluminum alloy body with an AG frosted glass back offers a delicate texture and comfortable grip. The screen features an oleophobic coating that significantly reduces fingerprints and smudges, making for smoother touch operation.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0065\/4432\/6771\/files\/10850831_crop.jpg?v=1761063263\" alt=\"Titanium color-way\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003ch2\u003eDigital and analog partition shielding\u003cbr\u003ePurely heavenly sound\u003c\/h2\u003e\n\u003cp\u003eThe digital and headphone amplifier sections exist in separate partitions and each is equipped with independent shielding covers for isolation. This not only further reduces signal crosstalk but also enables efficient heat dissipation, delivering purer sound.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0065\/4432\/6771\/files\/10850832_crop.jpg?v=1761063322\" alt=\"Digital and headphone amplifier sections\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003ch2\u003eFlagship-grade power supply design\u003c\/h2\u003e\n\u003cp\u003eThere are separate power supply paths for the digital and analog circuits, which effectively reduce crosstalk between the two. The result is more precise digital processing, purer analog output, and enhanced driving power. The analog circuit is further subdivided into multiple independent power supplies for components such as the DAC and headphone amplifier. This clean and robust power delivery enhances the dynamic range and leads to greater reproduction of details in the audio - for a more refined and natural sound.\u003c\/p\u003e\n\u003ch2\u003eHigh-end HiFi Parts For better sound\u003c\/h2\u003e\n\u003cp\u003eIn the M21's audio circuit are high-precision thin-film resistors and low- temperature-drift capacitors that ensure refined and stable sound quality - specifically the greater consistency between the left and right channels and across all frequency ranges. Additionally, fine circuits such as the DAC and headphone amplifier are equipped with over 10 low-impedance, high-capacity tantalum capacitors. These provide abundant energy reserves and a robust power supply for more powerful, dynamic sound.\u003c\/p\u003e\n\u003ch2\u003eGlobal audio optimization\u003c\/h2\u003e\n\u003cp\u003e5th-gen FPGA + dual custom femtosecond crystal oscillators\u003c\/p\u003e\n\u003cp\u003eFIIO developed a custom crystal oscillator specifically for the M21, which has been carefully selected to meet femtosecond-level standards, in order to ensure consistency and stability in its output. With a high-precision, low-jitter unified clock source, it accurately matches PCM and DSD audio at various sampling rates, ensuring precise reproduction of digital audio signals.\u003c\/p\u003e\n\u003ch2\u003eVersatile connectivity High-performance output\u003c\/h2\u003e\n\u003ch3\u003eAnalog Output\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e3.5mm+4.4mm headphone outputs: \u003c\/strong\u003eConnect to headphones\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0065\/4432\/6771\/files\/10850836_crop.jpg?v=1761063737\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3.5mm+4.4mm line outputs: \u003c\/strong\u003eThe independent line amplification circuits allow you to connect to active speakers or external amplifiers.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"float: none;\" alt=\"Analog Output\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0065\/4432\/6771\/files\/10850837_crop.jpg?v=1761063685\"\u003e\u003c\/div\u003e\n\u003ch3\u003eDigital Output\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eSPDIF output: \u003c\/strong\u003eThe low-jitter coaxial output is comparable to that of pro equipment, with the jitter reduced by 70% and achieving high performance when connected to an external high-end audio DAC.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"float: none;\" alt=\"Digital Output\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0065\/4432\/6771\/files\/10850838_crop.jpg?v=1761063580\"\u003e\u003c\/div\u003e\n\u003ch3\u003eCoaxial Output Circuit Architecture\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eUSB Audio output:\u003c\/strong\u003e Connect to an external audio DAC and instantly turn it into a streaming jukebox.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"float: none;\" alt=\"USB Audio output\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0065\/4432\/6771\/files\/10850840_crop.jpg?v=1761063638\"\u003e\u003c\/div\u003e\n\u003ch2\u003e15h long battery life Exploring the world of music\u003c\/h2\u003e\n\u003cp\u003eThe M21's 4000mAh high-voltage battery provides up to 15 hours of ultra-long battery life, effortlessly providing the energy for extended listening sessions when commuting or traveling, allowing you to fully immerse yourself in the world of music. It also supports 20W PD fast charging, enabling quick recharges even during short breaks.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e15h Single-ended battery life\u003c\/li\u003e\n\u003cli\u003e12.5h Balanced battery life\u003c\/li\u003e\n\u003cli\u003e1.5h Charging time\u003c\/li\u003e\n\u003cli\u003e20W PD fast charging\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e*Data is based on testing from FIIO Labs. Actual battery life may vary due to differing environments and conditions.\u003c\/p\u003e\n\u003cp\u003e*Only POWER IN interface supports PD fast charging.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0065\/4432\/6771\/files\/10850841_crop.jpg?v=1761063400\" alt=\"Lifestyle image of the M21\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003ch3\u003eHardware and software \u003cbr\u003eSynergy all covered\u003c\/h3\u003e\n\u003cp\u003eMQA 8x full unfolding\u003c\/p\u003e\n\u003cp\u003eTwo-way LDAC Bluetooth\u003c\/p\u003e\n\u003cp\u003eFive working modes\u003c\/p\u003e\n\u003cp\u003eCustomizable multi-function key\u003c\/p\u003e\n\u003cp\u003eRGB pulsing lights\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0065\/4432\/6771\/files\/10899037_crop.jpg?v=1761063888\" alt=\"Hardware and software\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003ch2\u003eButtons and ports Labeled\u003c\/h2\u003e\n\u003cp\u003e① Display\u003c\/p\u003e\n\u003cp\u003e② Indicator light\u003c\/p\u003e\n\u003cp\u003e③ Power\/lock key\u003c\/p\u003e\n\u003cp\u003e④ Volume up key\u003c\/p\u003e\n\u003cp\u003e⑤ Volume minus key\u003c\/p\u003e\n\u003cp\u003e⑥ Multi-function key\u003c\/p\u003e\n\u003cp\u003e⑦ Machine mode switch\u003c\/p\u003e\n\u003cp\u003e⑧ HOLD switch\u003c\/p\u003e\n\u003cp\u003e⑨ 4.4mm balanced headphone out\/line out\u003c\/p\u003e\n\u003cp\u003e⑩ 3.5mm headphone out\/line out\/coaxial out\u003c\/p\u003e\n\u003cp\u003e⑪ MicroSD card slot\u003c\/p\u003e\n\u003cp\u003e⑫ Type-C data\/charging port\u003c\/p\u003e\n\u003cp\u003e⑬ Type-C charging\/power supply port\u003c\/p\u003e\n\u003cp\u003e⑭ Glass back cover\u003c\/p\u003e\n\u003cp\u003e⑮ Aluminum alloy Mid-frame\u003c\/p\u003e\n\u003cp\u003e⑯ Next track\u003c\/p\u003e\n\u003cp\u003e⑰ Play\/Pause\u003c\/p\u003e\n\u003cp\u003e⑱ Previous track\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0065\/4432\/6771\/files\/10850843_crop.jpg?v=1761063942\" alt=\"Buttons and ports Labeled\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003ch2\u003ePacking List\u003c\/h2\u003e\n\u003cp\u003e①M21 * 1\u003c\/p\u003e\n\u003cp\u003e②Tempered film screen protector (pre-installed at factory*1)\u003c\/p\u003e\n\u003cp\u003e③ Protective case*1\u003c\/p\u003e\n\u003cp\u003e④ Warranty card *1\u003c\/p\u003e\n\u003cp\u003e⑤ Quick Start Guide * 1\u003c\/p\u003e\n\u003cp\u003e⑥ USB data cable * 1\u003c\/p\u003e\n\u003cp\u003e⑦ GPL V2 instruction manual *1\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0065\/4432\/6771\/files\/10850845_crop.jpg?v=1761063982\" alt=\"Packing List\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003ch2\u003eBasic specifications and parameters\u003c\/h2\u003e\n\u003ch3\u003eBasic Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eColor: Titanium gold,Dark blue\u003c\/li\u003e\n\u003cli\u003eDimensions: About 68mm x 121mm x 17mm\u003c\/li\u003e\n\u003cli\u003eWeight: About 193g\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHardware configurations\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSoC: Snapdragon 680\u003c\/li\u003e\n\u003cli\u003eOS: Android13\u003c\/li\u003e\n\u003cli\u003eDAC: CS43198*4\u003c\/li\u003e\n\u003cli\u003eDisplay: 4.7-inch (750x1334) fully laminated screen\u003c\/li\u003e\n\u003cli\u003eBattery capacity: 4000mAh\u003c\/li\u003e\n\u003cli\u003eCharging: Supports PD2.0 and PD3.0 PPS fast charging\u003c\/li\u003e\n\u003cli\u003eBattery life: 15h single-ended, 12.5h balanced\u003c\/li\u003e\n\u003cli\u003eRAM: 4GB\u003c\/li\u003e\n\u003cli\u003eInternal storage\/available capacity: 64GB\/about 52GB\u003c\/li\u003e\n\u003cli\u003eStorage expansion: MicroSD card, supports 2TB\u003c\/li\u003e\n\u003cli\u003eHeadphone outputs: Single-ended 3.5mm PO\/LO\/SPDIF + Balanced 4.4mm PO\/LO\u003c\/li\u003e\n\u003cli\u003eUSB interfaces: Type-C USB3.0*1 (charging\/data transmission)+ Type-C POWER IN*1 (charging\/independent power supply)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eBluetooth Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBluetooth version: 5.0\u003c\/li\u003e\n\u003cli\u003eBluetooth Transmitter: AAC\/SBC\/aptX\/aptX HD\/LDAC\/LHDC\u003c\/li\u003e\n\u003cli\u003eBluetooth reception: SBC\/AAC\/LDAC\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHeadphone outputs\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOutput power 1: L + R≥ 950mW +950mW(32Ω\/THD + N\u0026lt;1%\/balanced\/Super high gain mode)\u003c\/li\u003e\n\u003cli\u003eOutput power 2: L + R≥ 185mW +185mW(300 Ω\/THD + N\u0026lt;1%\/balanced\/Super high gain mode)\u003c\/li\u003e\n\u003cli\u003eOutput power 3: L + R≥ 405mW +405mW(32Ω\/THD + N\u0026lt;1%\/single-ended\/Super high gain mode)\u003c\/li\u003e\n\u003cli\u003eOutput power 4: L + R≥ 45mW +45mW(300 Ω\/THD + N\u0026lt;1%\/single-ended\/Super high gain mode)\u003c\/li\u003e\n\u003cli\u003eOutput power 5: L + R≥ 720mW +720mW(32Ω\/THD + N\u0026lt;1%\/balanced\/High gain)\u003c\/li\u003e\n\u003cli\u003eOutput power 6: L + R≥ 290mW +290mW(32Ω\/THD + N\u0026lt;1%\/single-ended\/High gain)\u003c\/li\u003e\n\u003cli\u003eSNR: ≥ 126dB (A-weighted)\u003c\/li\u003e\n\u003cli\u003eBottom noise: \u0026lt;1.6uV(A weight)\u003c\/li\u003e\n\u003cli\u003eOutput impedance: \u0026lt;1Ω\u003c\/li\u003e\n\u003cli\u003eTHD+N: \u0026lt;0.0003%(1kHz\/-4dB@32Ω)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"FiiO","offers":[{"title":"Blue","offer_id":49992468496617,"sku":"M21 Dark Blue (OB)","price":299.95,"currency_code":"USD","in_stock":false},{"title":"Gold","offer_id":49992468529385,"sku":"M21 Titanium Gold (OB)","price":299.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0065\/4432\/6771\/files\/51jla_BWBML._AC_SL1000__1.jpg?v=1760992861","url":"https:\/\/audio46.com\/products\/fiio-m21-portable-high-res-lossless-music-player-open-box","provider":"Audio46 Headphone Store","version":"1.0","type":"link"}