FiiO M21 DAP - Excellent - Verified by HiFiLoop
The Audiophile's Hook
The FiiO M21 is the “pocket powerhouse” DAP: a modern Android player with quad Cirrus Logic DACs, serious balanced output, and a clean, controlled presentation that scales with better IEMs. This unit is Excellent (98% new), includes a leather case, and comes as a full set—high performance / high value, verified by HiFiLoop.
Condition Report (The Truth)
Excellent / Well-Cared For: Very clean overall, lightly used, and handled with care.
- One small dark mark (cosmetic).
- Otherwise very clean condition.
- Leather case included.
- Box and accessories included as shown in the listing photos.
Mandatory: The device has passed all functional tests.
Sonic Signature & Pairing
M21 is built to sound crisp, stable, and energetic with strong separation—especially through the 4.4mm balanced output when you want maximum control and headroom. For the most noticeable upgrade, pair it with resolving, easy-to-drive IEMs and let the background get darker while detail pops forward.
To unleash the full potential of this device, we recommend pairing it with gear from our In-Ear Monitors Collection.
Technical Highlights (Mobile-Table)
| SoC | Qualcomm Snapdragon 680 |
| DAC | CS43198 × 4 |
| Display | 4.7" (750×1334) |
| Storage | 64GB internal; microSD up to 2TB (theoretical) |
| Outputs | 3.5mm PO/LO (shared) + 4.4mm BAL PO/LO (shared); 3.5mm coax out (shared) |
| Wireless | Wi-Fi 2.4/5GHz; Bluetooth 5.0 (TX: AAC/SBC/aptX/aptX HD/LDAC/LHDC; RX: SBC/AAC/LDAC) |
| Battery Life (Tested) | Up to 15h (3.5mm) / 12.5h (4.4mm) |
What's in the Box
- FiiO M21 Digital Audio Player
- Leather case
- Full retail box and accessories (as shown in photos)
Why Buy Used from HiFiLoop?
- ✅ 14-Day DOA: Full refund/replace if dead on arrival.
- 🔧 180-Day Warranty: Free repair service (buyer pays return shipping).
- 🔬 Lab Tested: I/O, noise floor, channel balance verified.
- 📦 Free Shipping: Orders over $199.
See full Grading Scale in Footer Condition Guide.
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Condition Report
See details in the description above.
Shipping & Warranty
Processing Time:
Please allow 3-5 business days for order processing. We perform a final rigorous audio test, functional inspection, and deep cleaning to ensure the device is in perfect condition before dispatch.
Shipping Method:
We use reliable International Priority Lines. Tracking numbers are provided once the item is dispatched.
Estimated Delivery:
7-15 business days to most destinations (USA, Europe, etc.).
Warranty & Support:
We stand behind our quality with a 180-Day Warranty.
- 0-14 Days: Full refund or replacement for any functional defects upon arrival.
- 15-180 Days: Free repair service for hardware issues (Buyer is responsible for return shipping costs and any applicable customs duties or taxes).
Tech Specs
Refer to official manufacturer specifications.