FiiO M21 Portable High-Res Lossless Music Player (Open Box) best headphones the new optimal curve developed

the new optimal curve developed for scratch

Signature sound Powered by Sennheiser TrueResponse transducer

These features provide a snug fit without adding pressure

Its compact length of 10cm (~3

Whether you're using an iPhone 15

FiiO M21 Portable High-Res Lossless Music Player (Open Box) best headphones the new optimal curve developedM21 Portable High Res Lossless Music Player New octa core 6nm Snapdragon 680 Android 13 4x CS43198 DACs Fully balanced 2 stage amplificationsDual Type C ports Low jitter coaxial output Desktop Portable dual power supply modes 950mW high output power 4. 7 inch compact HD screen 3. 5mm+4. 4mm headphone LO dual output A "Hearty" Benchmark New Paradigm The M21 redefines the entry level class with its flagship lineage, Its internal and external "hearts"