These damn Telink Wireless Receivers don't have pairing software, or any answers on how to pair them online. If you buy a keyboard and mouse, they'll come with two separate adapters, and now it's a pain to remember which one is which. Or worse, you're running low on USB ports and you just want one receiver for two products, like logitech.
However, all the answers are right in the poorly translated manual you got with your product.