> For the complete documentation index, see [llms.txt](https://teravolt.gitbook.io/teravolt/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://teravolt.gitbook.io/teravolt/radio/aeroelrs-2.4/features.md).

# Features

<figure><img src="/files/ouuWDwVek2gmgFjK4K9M" alt=""><figcaption></figcaption></figure>

* ExpressLRS 4.0 Compatible

  Fully compliant with ELRS 4.0 protocol for high-speed, low-latency, and long-range RC link.
* External Antenna Support

  IPEX/U.FL connector allows use of high-gain or directional antennas for extended range.
* Onboard RGB LED

  Built-in multicolor status LED for visual feedback on binding, signal strength, and link status.
* Ultra-Compact Design

  Just 12mm x 20mm in size, perfect for space-constrained builds.
* Lightweight

  Weighs under 4 grams including the antenna connector, minimizing impact on flight characteristics.
* High Update Rate

  Supports up to 500Hz packet rates (radio-dependent), delivering ultra-smooth control.
* Secure and Resilient Link

  Frequency hopping spread spectrum (FHSS) ensures robust performance even in noisy RF environments.

{% hint style="success" %}
Note: Tested more than 8 km LOS\*
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