The FiiO Retro Box is a cassette-deck-styled Bluetooth speaker that also plays from a computer over USB, built to pair with FiiO's M33, M21 and JM21 players. It suits headphone-first listeners who sometimes want music in the room, on a desk or kitchen counter, and makes a fun gift for a cable-heavy hi-fi fan.
Who the FiiO Retro Box is for
Headphone-first listeners: It covers the moments when you want music in the room instead of on your head.
FiiO M33, M21 and JM21 owners: FiiO built it to pair with these players, so the one you carry all day has somewhere to play when you get home.
Desk and kitchen listening: Bluetooth takes care of the phone and USB takes care of the computer, which makes it an easy desk or kitchen speaker.
Gift shoppers: The cassette-deck look makes it a playful present for someone whose audio rig is otherwise all cables.
FiiO Retro Box key specs
Connection: Bluetooth, USB
Design: Retro cassette-deck styling
Made to pair with: FiiO M33, M21, JM21
Colors: White, Black
Genuine FiiO stock — free shipping on every order.
FiiO Retro Box vs similar options
vs Mifa A90: The A90 is a grab-and-go portable for patios, campsites and road trips; pick the Retro Box for cassette-deck styling on your desk, or alongside a FiiO M33, M21 or JM21.
vs 1More NANO: Alongside Bluetooth 5.4 and USB-C, the NANO has a 3.5 mm AUX input and a microSD slot; pick the Retro Box for the cassette-deck look and its pairing with FiiO's M33, M21 and JM21.
Yes. Every unit we sell is genuine and brand-new, shipped in its original packaging, and backed by our 1-year TonePier warranty and 45-day returns.
Where does my order ship from, and how long does it take?
Every order ships from our warehouse in China, with full tracking, and most orders ship within 3 business days. Shipping is free on every order; most US orders arrive within 7–15 business days and most orders to other countries within 7–20 business days — see our shipping policy for details.
What if it isn't for me?
You get 45 days to decide. Keep the packaging, keep it in like-new condition, and send it back for a refund. Ear tips unsealed for hygiene reasons are fine — we expect you to actually listen.
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