Cannot find firmware update for Astro Mixamp

Hello, a friend of mine recently gave me the Astro Mixamp since he wasn't using it anymore. I plug it in the PC, Windows detects it and does it usual stuff. Although Windows installed it's microsoft drivers, I want to use the full functionality of the mixamp. I tried finding online the exact made of the device with no luck.
I tried finding it on the official website but I can't find the firmware or driver update for the...

Cannot find firmware update for Astro Mixamp