AnFace Hub mixes the sound of up to five PCs into your headphones — wirelessly, with a real knob and a mute button for each machine, and about 25 ms of latency. Plug a dongle into each computer, put your headphones on the hub, done.
Game on one PC, stream and chat on another. Today that means two headsets, a mixer full of cables, or missing half of what's going on.
Laptop from the office next to your own desktop. A KVM switches the screen — but not the sound. Notifications from the other machine simply never reach you.
Several boxes doing several jobs. You want to hear all of them, mute the noisy one for a minute, and never crawl under the desk to swap a jack.
Each dongle shows up on its computer as a normal USB sound card — no drivers, no software, Windows, macOS or Linux. It sends the audio over its own 2.4 GHz link to the hub, which mixes everything and plays it into your headphones.
USB-A or USB-C, your pick per machine. The computer sees a sound card called “AnFace” and starts using it. Nothing to install.
Every source gets its own volume knob and a mute button with a light. The mix is made at 44.1 kHz and a look-ahead limiter keeps it clean when everyone talks at once.
Wired headphones on the hub’s jack, or Bluetooth headphones through the optional transmitter. A mode switch trades source count for even lower latency.
Five dongles, five independent channels, mixed together — the number the whole design was sized for.
From the PC’s sound card to your ears — measured with two sources on the prototype; the design is sized for five. Low enough for games and video; no lip-sync drift.
Texas Instruments PCM5102A converter on its own low-noise regulator, TPA6132A2 headphone amplifier. No hiss, no whine from the radios.
Dongles are standard USB Audio Class devices. Windows, macOS, Linux, even a Steam Deck — they just show up.
Five sources at standard quality, three at higher quality, or a single source at the lowest latency the hardware can do.
A certified Bluetooth transmitter module sends the mix to Bluetooth headphones — aptX Adaptive and aptX Low Latency when your headphones support them.
| Mode | Sources | Audio | Hub + dongle latency | For |
|---|---|---|---|---|
| A · Standard | 5 | 44.1 kHz, standard bitrate | ~25–30 ms | Multi-PC desks, labs, streaming setups |
| B · Quality | 3 | 44.1 kHz, high bitrate | ~18–20 ms | Music and video on two or three machines |
| C · Direct | 1 | 44.1 kHz, high bitrate, minimal buffering | ~12–15 ms | Competitive gaming on one PC, wireless |
Latency figures are hub-to-ear over the wired jack, measured on the prototype for mode A and calculated for B and C. Bluetooth headphones add their codec’s own delay: roughly 40 ms with aptX Low Latency, 80 ms with aptX Adaptive, 150 ms or more with plain SBC — that part is set by the headphones, not by the hub.
Numbers marked “about” or “~” are prototype measurements and will be finalised with the production units.
Every hub has five channels. The bundles differ only in how many dongles come in the box — plug in more later and they just work. Each dongle is USB-A or USB-C, your choice.
Hub + 2 dongles. The dual-PC desk most people start with; three more channels waiting for the day you add a machine.
in the box: hub · 2 dongles · USB-C cableHub + 5 dongles. Every channel populated from day one — studios, labs, streaming rooms.
in the box: hub · 5 dongles · USB-C cableAdded a computer, or one went missing in a bag. USB-A or USB-C, same price. Add them below or buy later.
works with any AnFace HubClick a dongle to switch it between USB-A and USB-C. Add extras with the counter — a hub connects up to 5 dongles.
Prices are estimates, not a promise. They come from prototype component costs and will change as the project moves — enclosure, certification, component prices and batch size all affect them, up or down. Final prices are set at launch; waitlist members see them first and get the first units. Joining the waitlist commits you to nothing.
Two dongles and a hub on a bench. Audio link, mixing, drift compensation and packet-loss concealment working; the last audio glitches are being chased down one by one.
Hub PCB designed with a proper DAC stage, headphone amplifier, five channels of controls, ESD and power protection, and a footprint for the Bluetooth module. Dongle PCB next.
The first ten hubs go to waitlist members with multi-PC desks. Range, latency and stability in real rooms, not on a bench.
Enclosure, packaging, CE/FCC certification, small production run. Then a v2 with a microphone input the hub can send back to every computer.
I’m Michael, a 15-year-old student from Villach, Austria. I built the first version because I wanted to hear two computers at once without two headsets and a pile of cables — and nothing on the market did that wirelessly with low latency.
A few months in, the prototype works, the circuit board is designed, and I’m ordering the first batch. This site exists to find out how many other people want the same thing before I spend money on certification and enclosures. If that’s you, leave your email — and tell me what would make it right for your desk.
Want to speed it up? The first batch of boards, modules and test gear comes out of a student’s pocket money. A coffee’s worth goes straight into the next prototype — and every supporter gets named in the first firmware’s credits.
☕ Buy me a coffee