KuWFi 4G LTE USB Modem ROUTER

Do you need to hit a phone store up to get a SIM card with service on it web service monthly or can I make i this mf work off hotspot wifi like the internet by following these directions

Hello. I bought this device and I use it on my computer via usb, but when I want to connect another device via wifi it does not have access to the internet. Is there any solution?

Yea cool mudic but dont say how to set it up were the video on that

Hm