# NDI Controller

1. Check for [Interoperability](https://docs.ndi.video/all/developing-with-ndi/ndi-certified/certification-guidelines/interoperability-requirements) first. As it will not generate an NDI signal, it will not have an option such as multicast, but it must be able to work in a multicast environment
2. There are no stated performance metrics for delay between control and movement, but it shouldn’t feel “slow” or have a delay between controller and movement. 

{% hint style="warning" %}
Some controllers have a "deadzone" which may impact the “feel".
{% endhint %}

3. If the controller has an on-display monitor or can output to a monitor, run the test as a Decoder from above.

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