FiiO M21: an Android 13 hi-res music player with four CS43198 DACs and 64GB of storage, rated at 720mW per channel into 32Ω balanced on battery and 950mW in desktop mode on external PD power. Choose it if you stream through apps and want one pocket player for IEMs on the go and headphones at a desk.
Who the FiiO M21 is for
Streaming-app listeners: Android 13 with Google Play runs apps such as TIDAL, Qobuz or Spotify on the player itself, browsed on a 4.7-inch 750 × 1334 screen.
Desk listening without battery wear: Desktop mode runs it entirely from the separate POWER IN USB-C port, so the battery is neither charged nor drained, and a PD charger unlocks Super High gain at 950mW per channel into 32Ω balanced.
Higher-impedance headphones: In Super High gain the balanced output is rated at 185mW per channel into 300Ω, alongside 405mW single-ended into 32Ω.
Long days on IEMs: The 4,000mAh battery is rated for 15 hours single-ended or 12.5 hours balanced, and a HOLD switch guards against pocket presses.
Feeding other gear: 3.5mm and 4.4mm line outputs, coaxial S/PDIF and USB audio output connect it to active speakers, an amp or an external DAC.
Skip it if: You only listen on wireless earbuds, because the four DACs and the balanced amp only serve wired headphones.
FiiO M21 key specs
Operating system: Android 13 on Snapdragon 680, 4GB RAM
DAC chip: 4 × Cirrus Logic CS43198
Output power (High gain, battery): 290mW (3.5mm) / 720mW (4.4mm balanced) per channel at 32Ω
Output power (Super High gain, external PD power): 405mW (3.5mm) / 950mW (4.4mm balanced) per channel at 32Ω
Outputs: 3.5mm headphone/line/coaxial S/PDIF; 4.4mm balanced headphone/line; USB audio out
Storage: 64GB (about 52GB usable), plus microSD up to 2TB
vs Shanling M1 Plus: Runs Shanling's music-only MTouch OS (no app installs, Tidal built in) with 660mW balanced at 32Ω in a 116g body; pick the M21 for Google Play apps and desktop-mode power.
Yes. Every unit we sell is genuine and brand-new, shipped in its original packaging, and backed by our 1-year TonePier warranty and 45-day returns.
Where does my order ship from, and how long does it take?
Every order ships from our warehouse in China, with full tracking, and most orders ship within 3 business days. Shipping is free on every order; most US orders arrive within 7–15 business days and most orders to other countries within 7–20 business days — see our shipping policy for details.
What if it isn't for me?
You get 45 days to decide. Keep the packaging, keep it in like-new condition, and send it back for a refund. Ear tips unsealed for hygiene reasons are fine — we expect you to actually listen.
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