Overview

FiiO's AirLink plugs straight into a USB-C port and adds Bluetooth to anything that doesn't already have it — the exact gap that gets left when an older laptop, a desktop PC, or a Nintendo Switch only has a wired audio output. There's no battery to charge either; it draws power directly from whatever it's plugged into.

It's built around a Qualcomm QCC5181 chip running Bluetooth 6.0, with LDAC and the full aptX family on board (including aptX Lossless), so it can send audio up to 96kHz/24bit to compatible headphones or speakers — a real step up from the basic Bluetooth most built-in transmitters use. Bluetooth multipoint lets it stay paired to two devices at once, and range runs to 50m or more in open space.

It comes in Black or Silver, with a USB-A adapter included for ports that aren't Type-C.

Simcoe Audio Video Insight

One thing worth knowing before buying: the AirLink is a transmitter only, not a headphone amp — it has no 3.5mm or 4.4mm output of its own, so it's a different product from FiiO's BTR series, which receives Bluetooth and drives wired headphones. Because it's sending the signal out, the codec quality you actually hear depends on what's on the receiving end too; pairing it with an SBC-only speaker means you won't hear any benefit from LDAC even though the AirLink is capable of transmitting it. It's also worth confirming the source device outputs digital audio over its USB port in the first place, since the AirLink taps into that digital signal rather than an analog headphone jack.

Best for the FiiO AirLink: Pair it with LDAC or aptX Adaptive headphones or a speaker that supports the same codec, so the full 96kHz/24bit signal actually makes it through wirelessly rather than falling back to SBC.

More Details

Why It Wins

• Direct USB-C connection: Plugs straight into a USB-C port with its built-in Type-C plug — no cable, no drivers, and no dongle-and-cable clutter to manage.
• No battery to manage: Draws power directly from the host device, so there's no internal battery to charge or replace.
• Bluetooth multipoint: Supports connecting to two Bluetooth receivers at once, so two people can listen from the same source at the same time.

What Makes It Different

Most inexpensive Bluetooth transmitters on the market only cover SBC or basic aptX and need a separate USB cable to connect. The AirLink plugs in directly and carries the same high-res codec lineup — including LDAC and aptX Lossless — found on FiiO's larger desktop and portable gear, so the wireless link doesn't become the weak point in an otherwise good-sounding source.

Technical Highlights

• Qualcomm QCC5181 / Bluetooth 6.0: Handles audio up to 96kHz/24bit over LDAC, aptX Adaptive, aptX Lossless, aptX HD, aptX, and aptX Low Latency.
• 50m+ wireless range: Rated for 50m or more in open space (about 35m with obstacles), more than enough for a living room or open office.
• Compact size and weight: At roughly 34.5 x 23.5 x 9.5mm and about 5g, it's small enough to leave plugged in permanently without getting in the way.

Buyers Guide

Who This Is For

• The console or PC owner stuck with wires: Anyone with a Nintendo Switch, older laptop, or desktop PC that only outputs audio over USB and has no Bluetooth of its own.
• The high-res headphone owner: Someone who already owns LDAC or aptX Adaptive wireless headphones and wants a source that can actually deliver that codec instead of falling back to a lower-quality connection.
• The two-listener setup: Anyone who wants to send one source to two Bluetooth headphones or speakers at once using multipoint, without running a splitter cable.

Ideal Use Case

• Console or PC without Bluetooth: Turning a gaming console or older computer into a wireless audio source without buying new hardware.
• Shared listening: Sharing a laptop or tablet's audio with two sets of Bluetooth headphones at the same time.
• Streaming boxes and media PCs: Adding Bluetooth output to a device that only has a USB port for audio.

What To Pair It With

• FiiO BTR11 or BTR13 as the receiving end: Connect the AirLink to a USB-audio-only source and use a BTR as a Bluetooth receiver driving wired headphones or IEMs, completing the wireless link on both ends.
• LDAC or aptX Adaptive wireless headphones: Needed on the receiving end to actually hear the higher-resolution codecs the AirLink can transmit.
• A Nintendo Switch or similar USB-C console: A common source that has no Bluetooth of its own but outputs digital audio over USB.

Alternative Options

If a wired connection is more practical than going wireless, FiiO's KA11 or KA13 USB-C dongle DACs plug into the same port and drive headphones directly rather than transmitting to them. For the receiving end of a Bluetooth link — or for standalone use with wired headphones — the BTR11 and BTR13 cover a similar codec lineup in a headphone amp rather than a transmitter. Anyone who needs both a wired and wireless option in one device might be better served by a BTR-series model instead of the AirLink alone.