Legrand Niloé / Nereya switches x Home Assistant

Hello

I have legrand niloé / nereya zigbee switches and I want to connect them to the home assistant. These switches have no gateway to interconnect.

Can someone help me?
I leave here a link to the switches.

Please help me!

http://www.decorwatts.com.br/interruptor-zigbee.php

https://www.amazon.co.uk/Legrand-Niloé-Shutter-Switch-Zigbee®/dp/B00BD0EOSA