The entry-level flagship that's anything but basic, the M21 Portable Hi-Res Lossless Music Player from FiiO lets you enjoy audiophile-grade music on the go. It has enough power to drive demanding earphones and IEMs through either its 3.5mm or 4.4mm headphone outputs. The lossless audio you'll hear is powered by an octa-core Snapdragon 680 and quad CS43198 DACs with a two-stage circuit design for pure sound and rich detail. Now with desktop mode, a first for a portable FiiO player, you can choose to run the M21 continuously without battery stress. Play local files or access streaming services, managing it all easily via Android 13 and the brilliant built-in 4.7" HD display.
Dual Power Supply Modes
The dual power supply modes are split between portable and desktop. In portable mode, the M21 operates with standard voltage power. In desktop (or Super High Gain) mode, the M21 automatically switches to a high-voltage power supply that allows for 950mW (32 ohm) of power, opening up the player to a wider range of earbuds or headphones.
Premium Components and Engineering
- Partition Shielding: Digital and analog sections are physically partitioned to reduce signal crosstalk and improve heat dissipation for a purer sound
- Separate Power: Digital and analog circuit power supply paths also reduce crosstalk, with the analog path further subdividing to provide independent power to the DAC, headphone amp, and other components. This clean power distribution enhances dynamic range and acoustic detail
- Detailed Audio Circuit: The audio circuit has high-precision thin-film resistors and low-temperature-drift capacitors for refined and stable sound, plus greatly improved consistency between the left and right channels across all frequency ranges
- Finer Circuitry: 10 low-impedance, high-capacity tantalum capacitors work with finer circuitry such as the quad DACs, to deliver significant power reserves.
5th Gen FPGA
A 5th gen FPGA with dual custom femtosecond crystal oscillators help to ensure consistency and stability in audio output. A high-precision, low-jitter unified clock source matches PCM and DSD audio formats at different sampling rates for higher accuracy when reproducing your favorite music.
Dual USB-C
One USB-C port is a combination data and charging port. In addition to those capabilities, it can be used to let the M21 act as a jukebox with pure audio output when connecting to an external DAC. The second USB-C port is a pure charging/power supply port.
Premium Construction
A fully aluminum alloy body joins an AG frosted glass back to showcase its retro look, delicate texture, and comfortable grip. On the 4.7" HD display an oleophobic coating works to repel water while reducing fingerprints and smudges.
Additional Details
- Desktop mode requires USB-C power that is not included
- Up to 15 hours of playback
- 64GB of built-in storage
- 3.5mm and 4.4mm combo headphone and line outputs
- Use line out functionality to play the M21 through active speakers or an amplifier
- Two-way LDAC Bluetooth streaming
- MQA 8x full unfolding for the highest possible sound quality
- Five working modes
- Customizable multi-function button
- RGB pulsing lights to indicate different functions
- microSD card slot
- Pre-installed tempered film screen protector