Description
Condition: New
Patented Desktop Mode, Specialist in Battery Protection
The M21 is the first entry-level FIIO digital audio player to implement desktop mode.
When desktop mode is enabled, the M21 will only operate on power from an external power source.
The built-in battery is neither charged nor discharged, so it can be used safely even while powered without draining the battery. This extends battery life and prevents performance degradation over time. Long-term use at a desk will not affect portable use time
Portable and desktop, performance is dramatically improved by selecting the mode
In portable mode, it operates at standard voltage, while in desktop mode, you can select "Super High Gain" which allows high voltage operation.
In this mode, it achieves a peak driving voltage of 21Vpp (300Ω) and a powerful desktop-class output of 950mW (32Ω), adapting to a wider range of earphones and headphones.
4-way full-balanced architecture using 4 Cirrus Logic CS43198 units
The 8-channel full-balanced design with 4 DAC chips achieves dynamic performance and high noise resistance that exceeds its class, bringing out the full potential of the headphones.
The headphone amplifier section uses a two-stage circuit design, with the first stage being responsible for voltage amplification and the second stage for current amplification. This achieves sound with purer and richer details. With a precise and rich sound field and information volume comparable to that of higher-end models, you can maximize the capabilities of your headphones and enjoy the details of music that you have never heard before.
Various connectivity and expandability
Flexible connection with your devices is possible. With wide compatibility, it will play an active role as the center of your audio system for a long time.
・Analog output
3.5mm single + 4.4mm balanced headphone output: Connects to various earphones and headphones.
3.5mm single + 4.4mm balanced line output: Equipped with an independent line-only amplifier circuit, it can be connected to active speakers and amplifiers.
・Digital output
SPDIF output: Low jitter coaxial output comparable to professional equipment, achieving high performance when connected to an external high-end audio DAC.
USB audio output: Connect to an external audio DAC and use as a streaming jukebox.
True quality from inside to outside
The full aluminum alloy body features an AG frosted glass back panel, providing a delicate texture and comfortable grip.
The screen is coated with an oleophobic coating, making it less susceptible to fingerprints and smudges, and enabling smooth touch operation.
Made of high-quality materials that maintain their beauty for a long time, it creates a comfortable daily use.
⚠️ Important Safety Note (If applicable):[Safety Warning for Button/Coin Batteries]
Button/coin batteries can cause severe injuries or even death when swallowed.
Keep batteries out of reach of children.
If you suspect a child has swallowed or inserted a button/coin battery, seek medical attention immediately.
⚠️ Age Restriction
Please note that all items in our store are intended for ages 13 and up.
They are handled as collectors' items and are not designed or intended for young children.
Payment
Please pay within 5 days after the auction closed.
Shipping
※For buyers in the United States:
Import duties and taxes are included in the item price or shipping cost.
Items shipped to the U.S. are sent under the Delivered Duty Paid (DDP) method, which means all import-related charges are prepaid.
You don’t need to pay any additional fees when your order arrives.
※Please Note for EU Buyers:
In compliance with the EU customs reform starting July 1, 2026, for all imported goods
valued at €150 or less, your order will be shipped via DDP (Delivered Duty Paid).
All required customs duties and import fees for these items are fully prepaid at checkout,
meaning you will not face any additional charges or delivery delays upon arrival.
(Note: For items valued over €150, standard customs policies will apply upon delivery depending on your local regulations.)
From a global environmental point of view, used cardboard boxes and cushioning materials for packaging may be reused.
Please only purchase if you understand this point.
Item will be shipped within 10 business days after the payment received.
We ship almost worldwide.
Each country has its own shipping costs, so please check the shipping costs in your country.
The approximate delivery period will be about 4 to 7 days.
Please be advised that it could take up to 14 days based on the location or season.
Please contact us if you don't receive the item after 14 days from the ship date and we will resolve the issue
promptly and professionally.
Returns
Returns are accepted ONLY if the item was not the item described.
International Buyers - Please Note:
International Buyers - Please Note:
⚠️ [IMPORTANT NOTICE FOR INTERNATIONAL BUYERS]
Please note that import duties, taxes, and customs charges are NOT included in the item price or shipping cost.
These charges are the buyer's responsibility and will be collected by the courier upon delivery.
*How it works:
- If eBay collects taxes/VAT at checkout: (e.g., UK orders under £135, EU orders under €150, or US/Canada/Australia orders where
eBay automatically adds local sales tax), you will NOT be charged these specific taxes again upon delivery.
- If eBay does NOT collect taxes at checkout: (e.g., UK orders over £135, EU orders over €150, or shipments to South America, Canada, and other
countries where import duties apply), you will be required to pay the import duties and customs fees to the courier upon delivery.
Please check with your country's customs office to determine what these additional costs will be prior to purchasing.
We appreciate your understanding.
[For buyers outside the United States]
* Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the
buyer's responsibility.
* Please check with your country's customs office to determine what these additional costs will be prior to
bidding/buying.
* These charges are normally collected by the delivering freight (shipping) company or when you pick the item up -
do not confuse them for additional shipping charges.
* We do not mark merchandise values below value or mark items as "gifts" - US and International government
regulations prohibit such behavior.