FiiO M21 Portable High-Resolution Music Player

The FiiO M21 is a compact digital audio player designed for music lovers who want portable high-fidelity playback. Powered by a Snapdragon 680 processor and running Android 13, it blends modern performance with thoughtful audio engineering. Featuring four CS43198 DAC chips, balanced amplification, dual USB-C ports, and a retro-inspired protective case, it brings clarity and versatility to listening both at home and on the go.

Quad DAC Power for Clean, Dynamic Sound

The M21 houses four CS43198 DAC chips in an eight-channel fully differential configuration. This design enhances dynamic range, lowers noise, and delivers precise, interference-resistant playback.

Dual-Stage Balanced Amplification

With a two-stage amplifier circuit, the M21 ensures strong voltage drive and stable current output. This balance makes it capable of handling both sensitive in-ear monitors and power-hungry full-size headphones.

Desktop or Portable Power Modes

Switch between portable and desktop-grade performance. The M21 supports dual power supply modes, letting you enjoy efficient portability or tap into higher-powered output when docked.

Dual Type-C Ports and Low Jitter Output

Two USB-C ports provide flexibility for charging and data connections, while the low-jitter coaxial output ensures accurate digital signal transmission for external DACs.

Compact Display with Intuitive Interface

A 4.7-inch HD screen provides clear navigation and album artwork display, offering both portability and ease of use without compromising visibility.

Thoughtful Retro Protective Case

Inspired by classic cassette players, the included protective case offers durability while adding a nostalgic touch.

Product Highlights

• 4× CS43198 DAC chips with a fully differential design
• Dual-stage amplifier for balanced output
• Dual power supply modes: portable and desktop
• Dual Type-C ports for charging and data
• Low-jitter coaxial digital output
• 4.7-inch compact HD display
• 3.5mm and 4.4mm headphone/line-out jacks
• Retro cassette-style protective case

Specs

• Processor: Snapdragon 680, 6nm
• Operating system: Android 13
• DAC: 4× CS43198
• Output power: up to 950mW
• Outputs: 3.5mm single-ended, 4.4mm balanced, coaxial digital
• Screen: 4.7-inch HD
• Ports: 2× USB Type-C
• Power supply: Portable battery mode / external desktop power mode

What’s Included

• FiiO M21 Digital Audio Player
• Retro cassette-style protective case
• USB-C charging/data cable
• Quick start guide and documentation