Sprolink Airlink: One Tiny Box, Zero Cables, and Total 4K Freedom on Set
There is a moment on every shoot — whether it’s a run-and-gun outdoor documentary, a live-streamed product launch, or a multi-camera panel discussion — when a single HDMI cable brings everything to a halt. Someone trips. A connector wiggles loose. The director’s monitor flickers. You waste ten minutes troubleshooting while creative energy evaporates.
We’re Sprolink, and we’ve always believed that reliable, high-quality video transmission shouldn’t require a tether of cables or a rack of bulky gear. That belief became Airlink, a 4K wireless video transmitter that compresses professional-grade performance into a palm-sized device. It delivers lossless 4K HDMI transmission up to 300 meters with under 60ms latency, plus a set of clever workflow features that genuinely reduce the chaos on set. Let’s walk through why Airlink might be the last cable you ever pull.
What Is Sprolink Airlink?
Airlink is a point-to-point (or one-to-many) wireless video system built for modern content creators. It consists of a transmitter (TX) that mounts on your camera and a receiver (RX) that feeds a monitor, switcher, or computer. But calling it just a “wireless transmitter” undersells it. Airlink also does this:
UVC driver-free direct connection for Pocket 3, action cameras, and webcams
One TX to four RX simultaneous monitoring
KVM remote control over a PC from the receiver side
Horizontal/vertical switching for vertical live streams
Direct power supply to cameras like DJI Pocket 3, eliminating external batteries
4K Lossless Transmission That Feels Wired
At its core, Airlink uses a next-gen 4K codec chip to push up to 4K30 video over the air with zero compression artifacts. Feed it a 2160p signal via HDMI 2.0, and the receiver outputs a pristine image — sharp, color-accurate, and free of the blockiness that plagues older wireless systems.
For director’s monitoring or rigging up a village display, this is transformative. You can confidently judge focus and exposure on a large production monitor without wondering if the softness is the lens or the transmission.
HDMI loop-out on the TX is another detail we love. While you’re sending the clean wireless signal to the receiver, the local loop-out can feed a gimbal operator’s monitor or an on-camera display simultaneously, with no added delay.
Dual-Band Reliability: 2.4GHz + 5.8GHz Working Together
Wireless interference is the silent killer of live feeds. Airlink combats this with simultaneous dual-band transmission. The 2.4GHz band maintains device connection stability, while the 5.8GHz band is dedicated exclusively to the 4K audio/video stream.
The result is a system that intelligently resists interference. In a busy convention center or a crowded urban environment, Airlink stays solid. Through walls in a building, the 2.4GHz band keeps the control link alive while 5.8GHz delivers the picture. Combined, these two bands give you up to 300 meters (1000 ft) line-of-sight range, with latency held to under 60 milliseconds — fast enough for live switching and IMAG.
One Transmitter, Four Receivers: Built for Teams
Solo shooters are fine with a single receiver, but Airlink really shines in multi-person crews. One TX can simultaneously feed up to four RX units. Imagine a scenario:
Director’s handheld monitor (RX1)
Focus puller’s station (RX2)
Client monitor in the back (RX3)
Streaming encoder/switcher input (RX4)
Each receiver independently picks up the signal with no cross-talk or latency stacking. Pairing is straightforward via the on-screen menu, and the system remembers pairings so you’re not re-pairing every time you power up.
UVC Plug-and-Play: Ditch the Capture Cards
Here’s where Airlink gets delightfully simple. Connect a DJI Pocket 3, an action camera, or any UVC-compatible source directly to the transmitter’s USB-A port, and Airlink treats it as a native video input. On the receiver side, the USB-C port outputs a UVC signal — your computer sees Airlink as a standard webcam.
Why does this matter? You can now run a fully wireless multi-camera live stream into OBS, vMix, Zoom, or Teams without a single HDMI capture card. For IRL streamers, vloggers, and mobile journalists, this cuts setup time in half while making the rig exponentially more agile.
KVM: Control Your Source Computer Remotely
An unexpected but genius feature: plug a keyboard and mouse into the receiver, and you can remotely control a PC connected to the transmitter. This KVM functionality turns Airlink into a wireless control bridge.
Practical use cases:
Start/stop a teleprompter feed on the source PC
Change presentation slides remotely during a live event
Adjust camera settings on a tethered PC without walking back to the camera position
Troubleshoot a playback machine from the control room
It’s one of those features that, once you use it, you’ll wonder how you lived without it.
Horizontal, Vertical, Instantly
Short-form video and vertical live streams demand 9:16 framing. Airlink supports horizontal-to-vertical screen rotation directly from the TX: 0°, 90°, 180°, 270°. When you rotate, the receiver automatically syncs the setting, outputting a vertically framed image without needing to physically re-mount the camera or crop in software.
For creators who jump between YouTube horizontal streams and TikTok vertical streams in the same day, this is a huge time-saver. Pair a Pocket 3 in vertical mode with Airlink, and you have a native vertical wireless pipeline right into your streaming software.
Power That Keeps Up: Dual Supply & Camera Charging
Nothing ruins a shoot faster than batteries dying mid-take. Airlink supports dual power sources: standard NP-F style batteries (F970/F750/F550) and USB-C 5V/2A input. Hot-swap the NP-F battery while USB-C maintains power, and you’ll never drop the feed.
But the real kicker: Airlink can directly power your camera. Connect a DJI Pocket 3 via USB-C, and Airlink supplies power to the camera while transmitting its video. One less battery, one less cable, one less thing to fail. For outdoor creators who trek light, this integration is pure gold.
Real-World Setup: A Three-Camera Live Stream in 10 Minutes
Let’s put it together. You’re live-streaming a fitness class. Camera 1 is a wide-angle on a tripod, Camera 2 is a Pocket 3 on a gimbal tracking the instructor, Camera 3 is a laptop slideshow. You want to switch and stream wirelessly.
TX1 on Camera 1 (HDMI) → RX1 feeds the switcher
TX2 on Pocket 3 (USB UVC) → RX2 feeds the same switcher, and Airlink powers the Pocket 3
TX3 on laptop (HDMI) → RX3 feeds the switcher
The instructor’s monitor is an additional RX paired to Camera 1’s TX
No long HDMI runs across the floor, no capture cards, no power banks dangling from the gimbal. In under ten minutes, three cameras are live, and you’re cutting the show.
Specs at a Glance
Feature Detail
Video Input HDMI 2.0 (TX), UVC via USB-A (TX)
Video Output HDMI 2.0 (RX), UVC via USB-C (RX)
Max Transmission 4K30 lossless
Range 300 m (1000 ft) line-of-sight
Latency <60 ms
Frequency 2.4 GHz + 5.8 GHz dual-band simultaneous
Multi-RX 1 TX → up to 4 RX
Power NP-F battery + USB-C 5V/2A
Camera Charging Yes (via USB-C to Pocket 3, etc.)
Dimensions 118×71×28 mm (excluding antenna)
Weight ~210 g
Who Should Pick Airlink?
Ideal For
Live streamers and content creators who need a clean, wireless multi-camera setup
Documentary and event videographers requiring reliable long-range monitoring
In-house corporate AV teams running presentations and town halls
Gimbal operators who want zero cable drag and direct camera power
Consider Alternatives If
You require uncompressed 4K60 for cinema post-production monitoring (Airlink’s core is 4K30)
You need to feed more than 4 receivers simultaneously (consider Sprolink’s NDI-based solutions)
FAQ
Q: Can I use Airlink with my existing HDMI cameras?
Yes. Any camera with HDMI output works, plus UVC sources like Pocket 3 and action cams.
Q: Does 60ms latency affect live switching?
At 60ms — about 1.5 frames at 25fps — it’s fast enough for live switching, monitoring, and even IMAG. The dual-band system keeps it consistent.
Q: How do I pair multiple receivers?
Enter pairing mode on the TX via the menu, then activate pairing on each RX. The TX supports up to four receivers and retains pairings after power cycles.
Q: Can I use Airlink to stream directly to platforms without a computer?
Airlink is a video transmission system, not an encoder. You’ll need a computer or hardware encoder connected to the receiver’s HDMI/UVC output to stream to platforms.
Q: Does it come with antennas and batteries?
The package includes antennas. NP-F batteries are sold separately; you can also power via any USB-C 5V/2A source.
Cut the Cords, Keep the Quality
Sprolink Airlink is the tool we wish we’d had years ago — a simple, featherweight box that quietly handles the most fragile link in any video chain: the cable. With 4K lossless transmission, seamless UVC integration, one-to-four multi-view, and thoughtful touches like KVM and direct camera power, it earns its place in any modern creator’s toolkit.
If you’re ready to streamline your setup and shoot with freedom, explore the Airlink today.
