Not to be a naysayer here. But, having some exposure to Van Eck phreaking, even wired keyboards are unsecure. Morever, even if you were using AES, you still are open to timing attacks, which rely upon the timing of keypresses to determine the keys being used (a vulnerability that existed in SSH).
But none of this means this isn't an awesome wireless mechanical keyboard.
But none of this means this isn't an awesome wireless mechanical keyboard.