Desktop Bluetooth Speaker
FIIO RETRO BOX
Retro cassette style. Modern HiFi convenience.
Custom-tailored for selected FiiO players, RETRO BOX turns your portable player into a stylish desktop Bluetooth speaker with LDAC high-resolution wireless audio, USB DAC mode, and room-filling sound from a compact retro design.
Bluetooth 6.0 + LDAC USB DAC Mode 5.3W × 2 Output 10.5h Battery Life
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Perfect companion for FiiO players
Designed for FIIO JM21, M21 and M33 series players, RETRO BOX gives your music player a new role on the desk. Connect via Bluetooth and enjoy a cassette-inspired speaker setup that looks fun, feels nostalgic, and sounds far bigger than its footprint suggests.
JM21 / M21 / M33 R2R compatible M25 support via insert
Big sound from a clever 2+2 acoustic design
Two dedicated speakers and two passive radiators work from separate chambers to keep the sound crisp, balanced, and immersive. The side-firing layout helps create a smoother sound field that fills the room more naturally.
Dual 40mm full-range drivers
Two 40mm 4Ω drivers deliver clear, punchy stereo playback from a compact desktop body.
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Two passive radiators
Passive radiators add body and bass weight without making the speaker oversized.
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5.3W × 2 output
Dual-channel amplification gives RETRO BOX the power to sound full and energetic.
Bluetooth or USB DAC — your desk, your way
Use Bluetooth mode for simple wireless listening with LDAC support, or connect to a computer via USB DAC mode for a clean wired desktop setup. The USB connection supports 44.1kHz, 48kHz and 96kHz sampling rates.
Bluetooth mode
Bluetooth 6.0 with SBC and LDAC reception.
USB DAC mode
Driverless UAC 1.0 support for easy computer connection.
Note: the USB port carries both data and power. FIIO recommends connecting to a computer rather than a phone or tablet to avoid battery drain.
Tune the sound to your mood
A built-in DSP chip gives you four sound presets for different playlists. Press the volume knob to switch profiles and quickly find the sound that fits.
HiFi
Clean and balanced everyday listening.
Retro
A nostalgic flavour for relaxed listening.
Pop
Energetic and lively for modern tracks.
Warm
Smooth and rounded for easy listening.
Designed for real daily use
Intuitive controls
Use the 360° rotary knob for volume, press to switch EQ modes, and control playback with tactile physical buttons.
Built-in microphone
Pause your music, take calls or summon your voice assistant using the built-in silicon microphone on the top.
Stable chassis
A reinforced body and anti-vibration footpads help keep the speaker steady during dynamic playback.
Smarter control with the FiiO Control app
Personalise your audio with custom EQ settings, switch Bluetooth codecs, and keep the speaker performing at its best with firmware updates through the FiiO Control app.
Bring retro style to your desktop.
