Looks like GameSir is done making the GameSir T1s Wireless Controller.

[Silver Dollar]

I contacted Gamesir and asked:
"On your site the GameSir T1s Wireless Controller is marked sold out. Are you going to make more?"

They replied:
"Dear customer

There is no such R&D plan this year. Thank you for your love and support.

Thanks again..
Best regards

So I bought an extra but was only able to find about 4 new ones on the internet.