The FiiO JM21 is a portable HiFi music player that combines technology and design at a high level. At just 13 mm thick and weighing 156 grams, it offers high mobility, a good feel, and a user-friendly interface with a 4.7-inch HD touchscreen display. With 32 GB of internal storage and a slot for microSD cards, there is ample space for locally storing music files. The Android 13 operating system ensures smooth performance. Streaming services provide access to a vast selection of music. Two Cirrus Logic CS43198 DAC chips and an SGM8262 amplifier deliver symmetrical audio output with precise sound reproduction and impressive dynamic range. The built-in headphone amplifier offers an output power of up to 700 mW per channel, easily driving high-impedance headphones. With a 3.5 mm and a symmetrical 4.4 mm jack, the JM21 provides headphone connection options for a top-notch listening experience. The FiiO JM21 also supports Bluetooth 5.0 with aptX HD, LDAC, and AAC for high-quality wireless audio transmission. The 2400 mAh battery offers an impressive playback time of up to 12.5 hours. In less than two hours, the battery is fully charged and ready for use again. The device is not only technically sophisticated but also visually appealing, highlighted by its elegant and compact design. The FiiO JM21 is the ideal choice for anyone looking for a portable music player that combines exceptional sound quality, modern features, and high-quality craftsmanship in a compact format. Its versatility and excellent price-performance ratio make it an attractive option for both beginners and experienced music lovers. With this device, users experience music in its purest form - precise, powerful, and vibrant.