{"product_id":"fiio-m21","title":"Fiio M21","description":"\u003cp\u003eThe Fiio M21 packs a quad DAC, fully balanced architecture into a genuinely pocketable 193g body. Four Cirrus Logic CS43198 chips run in an eight channel differential layout, driven by a Snapdragon 680 on Android 13, so streaming apps feel quick and playback stays bit perfect.\u003c\/p\u003e\u003cp\u003eIt is the mid range sweet spot of FiiO's current player lineup: small enough for a jacket pocket, yet with a Super High Gain mode and desktop trick borrowed from the flagships.\u003c\/p\u003e\u003ch3\u003eType and Technology\u003c\/h3\u003e\u003cp\u003eThe M21 uses four CS43198 DACs in a fully differential configuration feeding a two stage amplifier built from OPA1692 voltage amps and SGM8262 current buffers. FiiO's DAPS architecture keeps Android from resampling your music, All To DSD and MQA 8x decoding are on board, and the 3.5mm socket doubles as a low jitter coaxial output. Dual USB C ports separate data from power, enabling the patented battery bypass desktop mode, and Super High Gain engages a higher voltage rail when external power is connected for up to 950mW per channel balanced.\u003c\/p\u003e\u003ch3\u003eSound Character\u003c\/h3\u003e\u003cp\u003eThe presentation is clean, transparent, and well balanced with a subtle touch of warmth that keeps long sessions musical rather than sterile. Bass is tight, quick, and controlled, treble is energetic and extended without fatigue, and resolution and background blackness are standouts for its class.\u003c\/p\u003e\u003ch3\u003eBuild and Features\u003c\/h3\u003e\u003cp\u003eA 4.7 inch 750 x 1334 display keeps the footprint at roughly 121 x 68 x 17mm, in Titanium Gold, Dark Blue, or Black. The 4000mAh battery runs about 15 hours single ended or 12.5 hours balanced and recharges quickly over 20W PD. Two way Bluetooth handles LDAC in both directions plus aptX HD and LHDC transmission, WiFi covers AirPlay, DLNA, and FiiO Link, and microSD cards up to 2TB expand the 64GB of internal storage. An RGB indicator, HOLD switch, customizable function key, and the optional SK-M21C cassette style case with matching retro interface add personality.\u003c\/p\u003e\u003ch3\u003eBest For\u003c\/h3\u003e\u003cp\u003eListeners stepping up from a phone and dongle who want a dedicated pocket player with real balanced power. Compare it with the rest of our \u003ca href=\"\/collections\/dap\"\u003edigital audio players\u003c\/a\u003e and other \u003ca href=\"\/collections\/portable\"\u003eportable gear\u003c\/a\u003e, or explore the whole \u003ca href=\"\/collections\/fiio\"\u003eFiio collection\u003c\/a\u003e.\u003c\/p\u003e\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFiio M21 player\u003c\/li\u003e\n\u003cli\u003eProtective case\u003c\/li\u003e\n\u003cli\u003eScreen protector (pre installed)\u003c\/li\u003e\n\u003cli\u003eUSB C data cable\u003c\/li\u003e\n\u003cli\u003eQuick start guide and warranty card\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eDAC\u003c\/td\u003e\n\u003ctd\u003e4x Cirrus Logic CS43198, fully differential\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAmp stage\u003c\/td\u003e\n\u003ctd\u003e2x OPA1692 with 2x SGM8262-2 buffers, fully balanced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePlatform\u003c\/td\u003e\n\u003ctd\u003eSnapdragon 680, Android 13, 4GB RAM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisplay\u003c\/td\u003e\n\u003ctd\u003e4.7 inch, 750 x 1334\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeadphone outputs\u003c\/td\u003e\n\u003ctd\u003e3.5mm single ended, 4.4mm balanced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput power\u003c\/td\u003e\n\u003ctd\u003eBalanced up to 950mW x2 at 32 ohms (Super High Gain with external power); single ended up to 405mW x2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLine and digital outputs\u003c\/td\u003e\n\u003ctd\u003e3.5mm and 4.4mm line out, 3.5mm coaxial out, USB Audio to 768kHz\/32 bit and DSD512\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDecoding\u003c\/td\u003e\n\u003ctd\u003e384kHz\/32 bit PCM, native DSD256, MQA 8x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGain levels\u003c\/td\u003e\n\u003ctd\u003eLow, Medium, High, Super High\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery\u003c\/td\u003e\n\u003ctd\u003e4000mAh, about 15 hours single ended, 12.5 hours balanced, 20W PD charging\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage\u003c\/td\u003e\n\u003ctd\u003e64GB internal, microSD up to 2TB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWireless\u003c\/td\u003e\n\u003ctd\u003eBluetooth 5.0 (TX LDAC, LHDC, aptX HD; RX LDAC, AAC, SBC), dual band WiFi, AirPlay, DLNA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eAbout 121 x 68 x 17mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eAbout 193g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColors\u003c\/td\u003e\n\u003ctd\u003eTitanium Gold, Dark Blue, Black\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eWhat Reviewers Say\u003c\/h3\u003e\n\u003cp\u003eReviews By WaveTheory highlights the M21's ample balanced power for driving full size headphones at its price in his hands-on review.\u003c\/p\u003e\n\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;\"\u003e\u003ciframe loading=\"lazy\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;\" src=\"https:\/\/www.youtube-nocookie.com\/embed\/22bHTUv3G8k\" title=\"Reviews By WaveTheory reviews FiiO M21\" frameborder=\"0\" allow=\"accelerometer; encrypted-media; picture-in-picture\" allowfullscreen\u003e\u003c\/iframe\u003e\u003c\/div\u003e","brand":"Fiio","offers":[{"title":"Blue","offer_id":53612177916183,"sku":null,"price":399.99,"currency_code":"USD","in_stock":true},{"title":"Titanium","offer_id":53615985459479,"sku":null,"price":399.99,"currency_code":"USD","in_stock":true},{"title":"Black","offer_id":53615985492247,"sku":null,"price":399.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0213\/4262\/files\/fiio-m21-thumb.webp?v=1783024859","url":"https:\/\/www.mimic-audio.com\/products\/fiio-m21","provider":"Mimic-Audio","version":"1.0","type":"link"}