.. _20 How to set electromagnetic channel for Controller:

20 How to set electromagnetic channel for Controller
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**Applicable Devices**: Neo2 series

In a distance of 2-3m, Pico Neo 2 allows using 23 electromagnetic channels and can support 11 devices at most at the same time. To ensure stability, a maximum of 8 devices is recommended.

**Steps:**

1. Go to Settings > Controller > Controller Configuration > Set Electromagnetic Channel

.. image:: _static/20.1.png
.. image:: _static/20.2.png
.. image:: _static/20.3.png

2. Choose a different channel for each controller.