Medium, wireless keyboard for under 50$

[jonfunko]

Good afternoon/evening/Morning, 

I'm looking to upgrade my keyboard for  something better for gaming than the Logitech K270 im using, some times the keyboard freezes then begins typing all of it at once. I do need to go wireless as im gaming on a couch with the desktop about 12 feet away, I'm looking for some back lighting for gaming at night playing world of warcraft. I'm hoping to use amazon, but am open to other vendors, it doesn't need to be mechanical, but if it is i prefer a silent linear switch with no tactile bump, like razer yellows.