24 May 2025

The DJI Mavic 4 Pro represents a bold step forward in drone technology, built for professionals and serious aerial creators who demand maximum performance, range, and reliability. Among its standout features is its extended transmission capability, which becomes even more powerful when paired with the DJI Cellular Dongle 2 - a game-changing accessory for long-range and mission-critical operations.

Extended Transmission Capabilities of the Mavic 4 Pro

The Mavic 4 Pro offers a maximum transmission range of up to 10 kilometers (approximately 6.2 miles) under CE regulations, thanks to DJI's advanced OcuSync 4.0 (OC4) transmission system. Operating across the 2.4 GHz, 5.1 GHz, and 5.8 GHz frequency bands, OcuSync 4.0 delivers 10-bit HDR video transmission with exceptional stability and ultra-low latency - even in complex environments with signal interference or partial line-of-sight.

This cutting-edge transmission system makes the Mavic 4 Pro a powerful tool for professionals in Europe engaged in industrial inspections, search and rescue operations, and high-end aerial cinematography - where a secure, long-range link between drone and controller is essential.

Introducing the DJI Cellular Dongle 2

To expand connectivity even further, DJI released the Cellular Dongle 2 on June 27, 2024. This accessory enables select DJI drones to connect to 4G LTE networks, offering a redundant, real-time communication channel when OcuSync signals are obstructed or degraded.

Interestingly, the Dongle 2 is listed as an official accessory under the Mavic 4 Pro section on DJI’s website, yet on the dongle’s own product page, the Mavic 4 Pro is not listed among the supported drones. This has led to some confusion within the community.

However, from firsthand experience:

I’ve tested the DJI Cellular Dongle 2 with the Mavic 4 Pro, and it fits and functions perfectly.
The dongle connects securely to the drone and powers up without issue, confirming physical and operational compatibility - even though it is not officially listed (yet).

Key Features of the Cellular Dongle 2:

• Stable 4G Connection: Maintains reliable control and video feed even when traditional RF transmission is compromised.
• Hybrid Transmission: Works in tandem with OcuSync to ensure seamless automatic switching to the strongest signal available.
• Broad Compatibility: Officially supports the Air 3, Mini 4 Pro, Dock 2, and Matrice 3/4 series - and unofficially, the Mavic 4 Pro.

Current Availability and Regional Limitations

Although the DJI Cellular Dongle 2 has been available since mid-2024, there are some important regional considerations:

• The dongle is fully functional with all officially supported drones - including in Europe.
• However, when paired with the Mavic 4 Pro, 4G functionality is only enabled in China at the time of writing. 
  In Europe and other regions, the dongle attaches and powers up correctly, but 4G-based transmission remains inactive until DJI releases regional firmware updates or backend activation.

This limitation appears to be a firmware or server-side restriction rather than a hardware issue, meaning DJI could enable Mavic 4 Pro support in additional regions through future software updates.

The dongle is available in Europe - including Malta at simacFPV

Conclusion

The combination of the Mavic 4 Pro’s OcuSync 4.0 transmission system and the future-ready Cellular Dongle 2 is a strong signal of DJI’s roadmap for global, hybrid-connected drones. The technology is already physically compatible, and full activation appears to be a matter of regional certification and software readiness.

If you're operating in China, you can already unlock the full potential of this pairing. For those of us in Europe, it’s a solid investment that will be ready to go once DJI rolls out support.

In the meantime, the Mavic 4 Pro remains a powerhouse in its own right - with world-class range, image quality, and now, confirmed compatibility with DJI’s most advanced connectivity accessory yet.