This advert was found in a Dutch computer magazine. “Wireless” cannot really be used here as an adverb because it’s an adjective. The adverb would be “wirelessly”. Problem is – and I sympathise – adjectives are used as adverbs in Dutch. The Dutch Railways’ famous “do not speak in a loudly voice” is the reverse: an adverb was used instead of an adjective.
The rest of the site is Dunglish as well, the French is franglais, and I’ll let you enjoy all the other versions!